02 Dec 2016:
To Fight Air Pollution, Four
Cities Announce Ban on Diesel Cars By 2025
Four of the world’s largest cities announced Friday that they will ban diesel cars by 2025
in an effort to cut air pollution.
Traffic and smog in the outskirts of Paris.
Leaders from Paris, Madrid, Athens, and Mexico City made the declaration at the C40 Mayors Summit, a biennial meeting of civic leaders concerned about climate change. Toxic air is responsible for an estimated 3 million premature deaths
each year, according to recent research by the World Health Organization. While diesel engines burn fuel more efficiently and therefore release less carbon dioxide, they do produce nitrogen dioxide and particulates that can inflame and damage people’s lungs. “Mayors have already stood up to say that climate change is one of the greatest challenges we face,” said Anne Hidalgo, the mayor of Paris. “Today, we also stand up to say we no longer tolerate air pollution and the health problems and deaths it causes.”
21 Nov 2016:
Canada to Phase Out
Nearly All Coal-Fired Electricity by 2030
Canada’s Environment Minister, Catherine McKenna, has announced that the country will eliminate virtually all coal-fired power plants
by 2030, which would mean that 90 percent of Canada's electricity would come from carbon-free sources of energy by that time. Speaking to reporters in Ottawa, McKenna said that four provinces still burn coal for electricity — Alberta, Saskatchewan, Nova Scotia, and New Brunswick. They will either phase out coal use or will be allowed to temporarily keep some coal-fired power plants open if equivalent CO2 emissions reductions are achieved in other sectors, McKenna said. Prime Minister Justin Trudeau, whose Liberal Party took power a year ago, ran on a platform of reducing carbon emissions and embracing renewable energy. Roughly 60 percent of Canada’s electricity is generated using hydropower, and analysts predicted that the Liberal government’s announcement Monday will stimulate the development of wind, solar, and other renewable forms of energy.
15 Nov 2016:
For Third Year in a Row, Carbon
Emissions Flat as Global Economy Grows
Global carbon emissions from fossil fuels stayed flat in 2015 and are projected to increase by only 0.2 percent in 2016 — marking three years in a row that emissions have been decoupled from global economic growth, according to a new analysis
by scientists at the University of East Anglia and the Global Carbon Project
. The three-year slowdown is largely due to China’s declining coal usage, the study said, which helped the country reduce emissions 0.7 percent in 2015 and a projected 0.5 percent in 2016. But the scientists warned that emissions simply staying flat is not sufficient to combat climate change. “This third year of almost no growth in emissions is unprecedented at a time of strong economic growth… but it is not enough,” Corinne Le Quéré, a climate scientist at the University of East Anglia who led the data analysis, said in a statement. “Global emissions now need to decrease rapidly, not just stop growing.”
03 Nov 2016:
Even With Paris Pledges, World
Could Warm As Much as 3.4 Degrees C By 2100
Global temperatures could rise as much as 3.4 degrees C (6.1 degrees F) this century even if nations achieve the greenhouse gas reduction targets set forth in the Paris climate agreement, according to a new report
from the United Nations Environment Program (UNEP). Emissions for 2030 are projected to be 54 billion to 56 billion tons of carbon dioxide, which is nearly 25 percent — or 12 billion to 14 billion tons of CO2 — higher than levels needed to hold global warming to 2 degrees C by 2100. The new UNEP report comes just one day before the Paris climate agreement officially enters into force, and a few days before the next UN global climate conference in Marrakesh, Morocco. “The world must urgently and dramatically increase its ambition to… have any chance of minimizing dangerous climate change,” the UNEP said
26 Oct 2016:
At Least 74,000 Americans Live
Near Oil and Gas Wells on Public Lands
A new online tool
mapping active oil and gas wells on U.S. public lands shows that at least 74,000 people in six states
Map showing population and oil and gas wells.
live within a half-mile of drilling sites. That close proximity puts these people at increased risk of cancer, heart disease, and respiratory problems from natural gas leaking from the wells, said the Wilderness Society, which together with Earthworks helped create the tool. In Wyoming, for example, 15,869 oil and gas facilities
operate on public land, and some 4,000 people live within a half-mile of them — the range that airborne pollutants from wells, such as benzene, can easily travel. The mapping tool is being released at a time when scientists, environmental groups, and policymakers are ramping up calls to reduce and regulate natural gas leaks
from drilling and storage sites.
19 Oct 2016:
Can We Turn CO2 into a Useable
Fuel? Scientists Say They Have Found a Way
Scientists at the Oak Ridge National Laboratory in Tennessee report that they have found a way to convert carbon dioxide into ethanol
, a usable fuel. The team used a spiky nanotechnology-based catalyst made out of carbon, copper, and nitrogen. When they applied voltage to the catalyst, CO2 dissolved in water turned into ethanol, with a yield of 63 percent. “We discovered somewhat by accident that this material works,” said Adam Rondinone, the Oak Ridge scientist that led the research. Because the materials are relatively cheap and the reaction can happen at room temperature, the researchers say the technique could be scaled up to store renewable energy as ethanol, for example, or to convert CO2 emissions into fuel. Finding new ways to use CO2 “in order to displace a fossil feedstock,” the scientists wrote in the study
, “is an appropriate intermediate step towards a carbon-free future.”
10 Oct 2016:
Trump Proclaims at Debate
That ‘Coal Will Last for 1,000 Years’ in U.S.
At the second 2016 U.S. presidential debate, Democrat Hillary Clinton and Republican Donald Trump clashed over energy policy and climate change
, with Trump
saying the energy industry is “under siege” from Obama administration regulations and vowing that “clean coal” will continue to power the U.S. for a thousand years. While both pledged to help beleaguered coal miners, Trump doubled down on his support for fossil fuel production while Clinton said the U.S. must gradually decouple its economy from coal, oil, and natural gas. “I support moving towards more clean, renewable energy as quickly as we can because I think we can be the 21st-century clean-energy superpower and create millions of new jobs and businesses,” she said.
07 Oct 2016:
Scotland to Generate Some of
World’s First Kite-Driven Power in 2017
The United Kingdom will begin harnessing energy from kites flying 450 meters above ground as early as next year. Developed by UK-based Kite Power Solutions
A kite-powered wind energy generator.
the system is composed of two 40-meter wide kites that rise and fall in tandem, spooling a tether line to turn a turbine. A test site was previously built in Essex
, and a 500-kilowatt system will be built near Stranraer, Scotland on the West Freugh air force station. Because the kites are lighter than wind turbines, they can more easily be built offshore and reach higher altitude winds, which are faster and more consistent. The technology, which companies hope could revolutionize global renewable energy strategies, is also being tested
in Switzerland and Italy, among other countries.
06 Oct 2016:
Methane Emissions From Fossil
Fuels Much Higher Than Previously Thought
Methane emissions from global fossil fuel production are up to 60 percent higher than previously estimated, according to a new study in the journal Nature
by the National Oceanic and Atmospheric Administration and several universities. Combined, methane emissions from oil and gas production and natural geological leakage are up to 110 percent greater than previously estimated. The upward revision shows that the fossil fuel industry is responsible for 25 percent of total global methane emissions, or up to 165 million tons of the 623 million tons emitted from all sources. The study comes at a time when companies are working to reduce methane leaks
from extraction facilities and pipelines, with some success. The scientists found leak rates have declined from 8 percent to 2 percent over the past 30 years. Increased natural gas production, however, has negated these improvements.
Public Art or Renewable Energy?
New Designs Aim to Produce Both
When the topic of energy infrastructure comes up, works of art don’t usually come to mind. But hundreds of such hybrid creations — part renewable power generators,
A vegetable farm off the Santa Monica Pier.
part large-scale art installations — now exist, at least on paper, as the result of a sustainable design competition known as the Land Art Generator Initiative
. Multi-disciplinary teams across the world have taken up the challenge to come up with buildable designs that produce renewable energy and “add value to public space, inspire, and educate.” In a photo essay, Yale Environment 360
highlights eight submissions to this year’s biennial competition, including the three winners announced this week. All designed for the waters off the Santa Monica Pier in Southern California, the systems range from a ring-shaped farm floating offshore to sail-like structures that harvest drinking water from fog.
27 Sep 2016:
Could California’s Gridlock
Generate Electricity for the Grid?
California is testing whether its heavy traffic can produce not just emissions and air pollution, but electricity.
Traffic on Interstate 80 near Berkeley, Calif.
The state’s Energy Commission says it will spend $2 million to examine the potential of using piezoelectric crystals embedded under asphalt as a way to send the energy created by moving cars to the grid. The crystals generate energy when compressed by the weight of moving cars, but tests of the technology at larger scales have failed or been canceled in Tokyo, Italy, and Israel, according to the Associated Press
. California, therefore, “needs to figure out whether it can produce high returns without costing too much,” the AP writes. If successful, the technology could help the state reach its goal to generate 50 percent of its electricity from renewable sources by 2030. California is expected to hit a 25 percent renewables target by the end of this year.
20 Sep 2016:
China Leads in Wind Installation,
But Continues to Prioritize Coal in the Grid
China built two wind turbines every hour in 2015, double that of the U.S., according to the International Energy Agency
. The country is installing enough wind to meet all of its new energy demand, more than 30,000 megawatts last year. Despite this promising development, however, the IEA told BBC News
that China is giving coal-fired power plants priority access to the grid over wind, hampering the country’s pledge to get an increasing share of its electricity from renewable energy sources. “The rather rosy statement on wind energy hides the issue that 2015 and the first half of 2016 also saw record new installations of coal,” an IEA spokesman said. “China has now a clear over-supply. In the province of Gansu, 39% of wind energy had to be curtailed (turned off).”
Clinton vs. Trump: A Sharp Divide
Over Energy and the Environment
Environmental and energy issues have received relatively little attention from the two major-party candidates in the 2016 U.S. presidential campaign. But when Donald Trump and Hillary Clinton have spoken out on these issues, the differences — like just about everything else about this campaign — have been stark. In a chart, Yale Environment 360
compares what Clinton and Trump have said on topics ranging from climate change to coal. See the graphic.
07 Sep 2016:
Costa Rica Runs on Renewable
Energy For More Than Two Months Straight
Costa Rica has generated 100 percent of its electricity from renewable energy 150 days so far this year, including all of the past two months, according to the Costa Rican Institute of Electricity, the nation’s main power provider. The country’s main source of renewable energy is hydropower, which accounted for 80 percent of Costa Rica’s electricity generation in August, according to Mashable
. Another massive hydroelectric power plant, the Reventazón dam, is scheduled to come online in September, further boosting the nation’s hydroelectric production. Geothermal, powered by Costa Rica’s many volcanoes, generated another 12.6 percent of electricity. Wind and solar make up roughly 7 percent of generation. Experts say Costa Rica is on track to meet, if not beat, last year’s record 299 days of 100 percent renewable energy.
25 Aug 2016:
Scientists Find New Way
To Convert Carbon Dioxide into Energy
Scientists have discovered a way to convert greenhouse gas emissions into a fuel
in a single step using a light-driven bacterium, according to new research published in the Proceedings of the National Academy of Sciences
. A team of U.S. scientists, led by biochemists at Utah State University, used a modified version of the phototrophic bacterium Rhodopseudomonas palustris
as a catalyst to break apart carbon dioxide and turn it into hydrogen and methane, the latter of which can be burned to generate electricity. "It's a baby step, but it's also a big step," said Utah State biochemist Lance Seefeldt
, a co-author of the study. "Imagine the far-reaching benefits of large-scale capture of environmentally damaging byproducts from burning fossils fuels and converting them to alternative fuels using light, which is abundant and clean."
For China’s Massive Data Centers,
A Push to Cut Energy and Water Use
China’s 1.37 billion people, many of them fully connected to the Internet, use an enormous amount of energy as they email, search the Web, or stream video.
Solar panels atop a green data center in Hangzhou.
Indeed, the Chinese government estimates that the country’s data centers alone consume more electricity than all of Hungary and Greece combined. But as Chinese technology and internet businesses look to burnish their environmental credentials and lower costs of operation, many are working to run their massive computing facilities more sustainably. Globally, tech giants such as Microsoft, Google, and Amazon are making rapid progress in this field, as they boost energy efficiency at data centers and seek to completely power their operations using renewable energy.
12 Aug 2016:
July Electric Car Sales in China
Rose by 188 Percent Over Last Year
Chinese consumers bought 34,000 new electric cars in July, a 188 percent jump over the same period last year, according to CleanTechnica
, an energy and technology news organization. The monthly total puts China on track to sell 400,000 electrical vehicles in 2016, accounting for 1.5 percent of the total auto sales market — larger than annual EV sales in Europe, or the U.S., Canada, and Mexico combined. By the end of the year, China is projected to have 700,000 electric cars on its streets; the vast majority of EV sales, 96 percent, are for Chinese-made cars, including from manufacturers BYD Auto, Zhidou, and SAIC Motor. Tesla accounts for just 2 percent of EV sales in the country, and Porsche just 1 percent.
08 Aug 2016:
Ending U.S. Oil Subsidies
Would Have Minimal Impact, Study Says
Eliminating the U.S. government’s $4 billion in annual petroleum industry subsidies would have only a minor impact on American oil and natural gas production and consumption, but would strengthen the country’s influence in pushing for global action to slow climate change, according to a report by the Council on Foreign Relations.
said that ending the three major federal petroleum subsidies would cut domestic production by 5 percent by 2030, which would increase international oil processing by just one percent. U.S. natural gas prices could go up by as much as 10 percent, and natural gas consumption and production would likely fall about 4 percent, the study found. Petroleum industry subsidies are a political flashpoint, with many Democrats arguing for their elimination and Republicans saying they are vital to U.S. energy security. But the study’s author concluded that “U.S. energy security would neither increase nor decrease substantially” if the subsidies are ended.
27 Jul 2016:
Ukraine Looking to Turn
Chernobyl Into a Massive Solar Farm
Chernobyl could soon start producing energy again — this time as a massive solar farm. Thirty years after the meltdown of the nuclear power plant,
The ghost town Pripyat.
Ukraine is looking for investors for a 1-gigawatt solar farm in the 1,000-square-mile exclusion zone, where radiation levels remain too high for farming or forestry, reported Bloomberg
. The project would cost $1.1 billion and transform Chernobyl into one of world’s largest solar installations. Government officials say that two U.S. investment firms and four Canadian energy companies have expressed interest in the project. The European Bank for Reconstruction & Development is also considering financing the solar farm. “The Chernobyl site has really good potential for renewable energy,” Ukraine’s environment minister Ostap Semerak said
. “We already have high-voltage transmission lines that were previously used for the nuclear stations, the land is very cheap, and we have many people trained to work at power plants.”
25 Jul 2016:
Global Economy Has Reduced
Its Energy Intensity By One-Third Since 1990
The global economy is becoming less energy intensive
, using fewer fossil fuels to power productivity and economic growth, according to new data from the U.S. Department of Energy.
Rooftop solar panels
Global energy intensity — a measure of energy consumption per unit of gross domestic product (GDP) — has decreased nearly one-third since 1990, the agency said. The U.S., for example, burned 5,900 British thermal units per dollar of GDP
in 2015, compared to 6,600 BTUs in 2010. China burned 7,200 BTUs per dollar in 2015 versus 8,300 BTUs in 2010. The Department of Energy says the decrease is the result of the growth in low-carbon energy sources, such as wind and solar, and improved energy efficiency. “This is excellent news,” Penn State University climatologist Michael Mann told Climate Central
. “The dramatic drop we are seeing in global energy intensity is a direct indication that energy efficiency measures are having a very direct impact on global carbon emissions.”
13 Jul 2016:
Six Years After BP Spill,
Remaining Oil More Toxic Than Ever To Fish
Six years after the Deepwater Horizon drilling rig spilled nearly three million barrels of crude oil into the Gulf of Mexico, scientists have found that ultraviolet light
is transforming the remaining oil
into a more toxic substance that hinders the development of heart, eye, and brain function in fish. The research, led by scientists at the University of California, Riverside and the University of Miami, exposed embryos and larvae of mahi-mahi from the Gulf of Mexico to what they called weathered (exposed to years of sunlight) and un-weathered oil (taken from the drilling site) from the Deepwater Horizon spill in 2010. Compared to fish exposed to un-weathered oil, the fish exposed to the weathered oil experienced impaired eye and neurological function, reduced heart rates, and a buildup of excess fluid in the heart.
11 Jul 2016:
Tax Credits Double Projections
Of Solar Growth in One U.S. Market
A new market report
estimates that U.S. rooftop solar in the Mid-Atlantic region will likely increase exponentially over the next five years thanks to extended federal tax credits. The Business Energy Investment Tax Credit
that Congress unexpectedly renewed last December gives homeowners and developers 30 percent back on solar panel installations and other renewable energy investments through 2019. The program could help solar installation growth in the Mid-Atlantic reach over 9,000 megawatts by 2021, doubling previous projections, according to the report, which was conducted by market research firm CreditSights. Such a jump would alleviate the need for U.S. power companies to subsidize electric needs with nuclear, natural gas, or coal during peak energy consumption periods. “If rooftop solar grows more than 30 percent, there’s no reason we couldn’t see electricity demand growth go negative in the coming years,” Greg Jones, a New York-based analyst with CreditSights, told Bloomberg News
29 Jun 2016:
U.S. Solar Energy Market
Experiencing an Unprecedented Boom
Thanks to a renewal of federal tax credits and a continuing steep drop in the price of photovoltaic panels, U.S. solar energy production is surging to record highs.
New market reports show that the U.S. solar industry is expected to install 14.5 gigawatts of solar power in 2016, nearly double the record 7.5 gigawatts installed last year. (Less than 1 gigawatt of solar power was installed in 2010.) Revenues from solar installations increased 21 percent from 2014 to 2015, surpassing $22 billion. In terms of megawatts of electricity produced, new solar installations are expected in 2016 to surpass all other new sources, including natural gas-fired power plants. The extension of a 30-percent federal tax credit and a sharp drop in prices — the wholesale price of solar panels has fallen from $4 per watt in 2008 to $0.65 per watt today — are contributing to the boom. U.S.-based Solar World is building a giant solar panel factory in Buffalo, New York that is expected to employ 3,500 people.
28 Jun 2016:
U.S., Canada, and Mexico to
Set 50 Percent Renewable Power Goal by 2025
The United States, Canada, and Mexico will pledge on Wednesday to generate 50 percent of their electricity
from non-fossil fuel sources by 2025, according to U.S. officials. The three nations are expected to set the ambitious goal at a North American Leaders Summit in Ottawa. The commitment includes not just renewable sources of power such as energy and wind, but also hydropower, nuclear power, carbon capture and storage at coal-fired power plants, and gains in energy efficiency. Under that definition, the three nations now produce 37 percent of their electricity from renewable sources. Canada is leading the way in non-fossil fuel power generation, with 59 percent of its electricity coming from hydropower and 16 percent from nuclear plants. Continent-wide cooperation on clean energy issues has improved since the election last year of Justin Trudeau as Canada’s Prime Minister.
27 Jun 2016:
Abandoned Coal Mines Emit
As Much CO2 as a Small Power Plant
Thousands of abandoned coal mines dot the U.S. landscape, vestiges of old fossil fuel boomtowns and industrial hubs.
An abandoned coal mine in Ashland, Penn.
But despite no longer producing coal, these sites are still contributing to climate change by leaking carbon dioxide into the atmosphere, according to a recent study by scientists at West Virginia University
. The total amount of CO2 released annually by 140 abandoned sites in Pennsylvania is equal to that “of a small coal-fired power plant,” says the study, published in Environmental Earth Sciences
. CO2 is created when sulfuric acid generated during the mining process interacts with carbonate rocks. It is then carried to the surface
in runoff water. “Although considerable research has been conducted regarding the environmental legacy of abandoned mine lands, their role in carbon cycling is poorly [understood],” wrote the scientists. The findings “suggest that these waters may be important to carbon cycling on a regional scale.”
20 Jun 2016:
2015 Deadliest Year for
Environmentalists on Record, Finds Report
Last year was the deadliest year on record for environmentalists, according to a new report from Global Witness
, a nonprofit that tracks environmental and human rights abuses worldwide.
Indigenous people protest a dam in the Amazon.
One hundred and eighty-five people were killed trying to stop development of land, forests, and rivers in 16 countries in 2015 — equal to more than three people per week. The tally represents a 59 percent increase over 2014, and is double the number of journalists killed in the same period, according to the report. Environmentalists were most at risk in Brazil, the Philippines, and Columbia, which had 50, 33, and 26 killings last year, respectively. “This report sheds light on the acute vulnerability of indigenous people, whose weak land rights and geographic isolation make them particularly exposed to land grabbing for natural resource exploitation,” the Global Witness authors wrote. “In 2015, almost 40% of victims were indigenous.”
15 Jun 2016:
Clean Energy Could Cost Up To
59 Percent Less by 2025, Report Finds
The cost of solar energy could drop by as much as 59 percent by 2025, from 13 cents to 6 cents per kilowatt hour, according to a new report from the International Renewable Energy Agency
Rooftop solar panels in Hannover, Germany.
Offshore wind could become 35 percent cheaper, and onshore wind 26 percent cheaper, by 2025. The cost of building renewable energy facilities is also likely to fall, by as much as 57 percent by the middle of next decade, the report found. “Historically, cost has been cited as one of the primary barriers to switching from fossil-based energy sources to renewable energy sources, but the narrative has now changed,” Adnan Z. Amin, director-general of IRENA, said in a statement
. “To continue driving the energy transition, we must now shift policy focus to support areas that will result in even greater cost declines and thus maximize the tremendous economic opportunity at hand.”
14 Jun 2016:
CO2 Crosses 400 ppm For Last
Time “Within Our Lifetimes,” Study Warns
Atmospheric concentrations of CO2 will stay permanently above 400 parts per million (ppm) this year due to El Nino—and will likely not drop below that number again “within our lifetimes,” according to a study published this week in the journal Nature
CO2 measurements from 1958 to today.
The milestone represents a symbolic threshold that scientists and environmentalists had long sought to avoid. Greenhouse gases have jumped 48 percent from the pre-industrial era, and 29 percent in just the past 60 years, from 315 ppm to 407 ppm today. CO2 concentrations tend to ebb and flow with the seasons, dipping as vegetation grows in summer and increasing during winter. But in the study published in Nature
, scientists at the U.K.’s Met Office and University of California, San Diego warned that because of the recent El Nino, CO2 concentrations wouldn’t fall below 400 ppm this year, or any year into the distant future.
10 Jun 2016:
Researchers Find a Way to Turn
CO2 Into Rock at Iceland Power Plant
Scientists have discovered a new way to successfully capture carbon dioxide and transform it into rock deep underground. The experiment, published in this week’s Science
Section of rock made from mixing CO2 and water.
was conducted at the Hellisheidi power plant in Iceland, the world’s largest geothermal facility. When the plant — which helps power Iceland’s capital, Revkjavik — pumps up volcanically heated water to turbines, gases like carbon dioxide and hydrogen sulfide often come up as well. A team of U.S. and European researchers, led by Columbia University's Lamont-Doherty Earth Observatory, captured the CO2, mixed it with the used volcanic water, and re-injected it into basalt rocks up to a half-mile underground. More than 95 percent of the mixture naturally solidified into carbonate minerals in less than two years. Previous estimates predicted that the process could take hundreds, if not thousands, of years.
26 May 2016:
More Solar Energy Jobs Exist
In U.S. Than in Oil and Gas Sector
Solar energy now supports more jobs in the U.S. than either the oil and gas industry or coal mining, according to a new report
from the International Renewable Energy Agency (IRENA).
Solar jobs grew at a rate 12 times faster than general U.S. job market growth. Worldwide, employment in green energy grew 5 percent in 2015, to 8.1 million jobs, IRENA reported. The 58 percent drop in oil prices since 2014
caused many fossil fuel companies to lay off workers — more than 350,000 people worldwide since the slump began. The IRENA report says clean energy jobs could triple to 24 million by 2030 if nations follow through on the climate pledges they made in Paris last year. “This increase is being driven by declining renewable energy technology costs and enabling policy frameworks,” said Adnan Amin, director-general of IRENA.