Department: Forum

What Pope Francis Should Say <br />In His Upcoming UN Address

What Pope Francis Should Say
In His Upcoming UN Address

Pope Francis will speak to the United Nations General Assembly on Sept. 25 about poverty, the environment, and sustainable development. In a Yale Environment 360 forum, seven leading thinkers on the environment and religion describe what they would like to hear the pope say.

Top Climate Scientists Assess
Latest Report from U.N. Panel

Yale Environment 360 asked some leading climate scientists to discuss what they consider to be the most noteworthy or surprising findings in the recently released report of the Intergovernmental Panel on Climate Change’s working group on the physical science of a warming world.

Forum: How Daring is<br /> Obama's New Climate Plan?

Forum: How Daring is
Obama's New Climate Plan?

President Obama has unveiled a proposal to combat global warming that would, for the first time, regulate carbon dioxide emissions from all U.S. coal-fired power plants. Yale Environment 360 asked a group of experts to assess the president’s climate strategy.

Forum: Assessing Obama’s <br /> Record on the Environment

Forum: Assessing Obama’s
Record on the Environment

When Barack Obama won the presidency in 2008, environmentalists were optimistic that their issues would finally become a priority at the White House. So how is Obama doing? Yale Environment 360 asked a group of environmentalists and energy experts for their verdicts on the president's performance.

Forum: Just How Safe <br /> Is ‘Fracking’ of Natural Gas?

Forum: Just How Safe
Is ‘Fracking’ of Natural Gas?

New technologies for freeing natural gas from underground shale formations have led to a hydraulic fracturing boom across the U.S. that is now spreading to other countries. In a Yale Environment 360 forum, eight experts discuss whether “fracking” can be done without serious harm to water and air quality and what environmental safeguards may be needed.


Forum: Is Extreme Weather<br /> Linked to Global Warming?

Forum: Is Extreme Weather
Linked to Global Warming?

In the past year, the world has seen a large number of extreme weather events, from the Russian heat wave last summer, to the severe flooding in Pakistan, to the recent tornadoes in the U.S. In a Yale Environment 360 forum, a panel of experts weighs in on whether the wild weather may be tied to increasing global temperatures.


As Copenhagen Talks Near,
What Are Prospects for Success?

For months, hopes that a climate treaty would be signed at the upcoming Copenhagen conference have been raised, then dashed, then raised again. Now, with prospects waning that a binding accord on reducing greenhouse gas emissions can be reached this year, ten environmental leaders and climate experts outline for Yale Environment 360 what they believe can still be accomplished at Copenhagen.

The Waxman-Markey Bill:
A Good Start or a Non-Starter?

As carbon cap-and-trade legislation works it way through Congress, the environmental community is intensely debating whether the Waxman-Markey bill is the best possible compromise or a fatally flawed initiative. Yale Environment 360 asked 11 prominent people in the environmental and energy fields for their views on this controversial legislation.

Putting a Price on Carbon:
An Emissions Cap or a Tax?

The days of freely dumping greenhouse gases into the atmosphere are coming to an end, but how best to price carbon emissions remains in dispute. As the U.S. Congress debates the issue, Yale Environment 360 asked eight experts to discuss the merits of a cap-and-trade system versus a carbon tax.

A Green Agenda for the
President’s First 100 Days

Environmentalists – from Bill McKibben and Paul Hawken, to Fred Krupp and Frances Beinecke – offer President Obama their advice on the priorities he should set for the first 100 days of his administration.

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30 Nov 2015: Paris COP21 — Obama, Xi Vow to
Lead In Climate Fight as Paris Talks Open

Joining leaders from 150 nations in Paris, President Barack Obama acknowledged the U.S.’s special responsibility as the major historical emitter

UN climate chief Figueres greets President Obama
of greenhouse gases and vowed that the U.S. would take a leading role in fighting climate change, which he called the central challenge of the 21st century. “The United States of America not only recognizes our role in creating this problem, we embrace our responsibility to do something about it,” Obama said at the opening of United Nations climate talks. He vowed that the U.S. and other developed nations would provide aid for renewable energy development and climate adaptation to developing nations, which he said had “contributed little to climate change but will be the first to feel its most destructive effects.” Chinese President Xi Jinping said that his country would meet its goal of hitting peak emissions by 2030, with steady declines thereafter.


Interview: Why Brazil’s Pledges On
Carbon Emissions Are Not Enough

In recent years, Brazil has been widely praised for reducing deforestation in the Amazon by 75 percent from 2005 to 2014.
Maria Fernanda Gebara
Maria Fernanda Gebara
But with United Nations climate talks set to begin next week in Paris, analysts are taking a closer look at Brazil’s pledges to cut deforestation and greenhouse gas emissions, with some saying there is less there than meets the eye. One of the more outspoken critics of the country’s CO2-reduction policies is Brazilian political scientist Maria Fernanda Gebara. In an interview with Yale Environment 360, Gebara, a research associate in the Department for International Development at the London School of Economics, says Brazil’s policies will do little more than stabilize emissions for the next 15 years, will fail to clamp down on illegal logging, and will continue the nation’s dismal record of developing solar and wind power.
Read the interview.

25 Nov 2015: Airlines Could Halve Emissions
By 2050 by Making Cost-Saving Changes

Airlines could cut their greenhouse gas emissions in half over the next 35 years by making changes that would actually

Cost-effective changes could cut airline emissions.
save them money, according to research published in the journal Nature Climate Change. Researchers developed a list of 14 strategies, all based on current technologies, that airlines could pursue to cut emissions, which account for roughly 2 to 3 percent of the total carbon dioxide added to the atmosphere each year. For example, one recommendation is to keep planes at the gate until takeoff rather than making them idle on the runway, or to use fewer engines — perhaps even electric engines — when taxiing. Emissions could also be cut significantly by reducing aircraft weight, the researchers say, such as by lowering the amount of extra fuel carried or replacing seats and brakes with ones made from lighter materials. Updating flight paths to more direct routes, adjusting altitude and speed to avoid drag-inducing turbulence, and retiring older planes would also cut costs and emissions.


Interview: ‘Third Way’ Technologies
Could Help Turn the Tide on Climate

Massive seaweed farms that suck carbon dioxide out of the atmosphere and counteract ocean acidification. The widespread adoption of carbon
Tim Flannery
Tim Flannery
fiber technology that extracts CO2 from the air and turns it into cars and other industrial products. Concrete manufacturing that is carbon-negative rather than the energy-guzzling Portland cement used today. These and other ideas represent what Australian scientist Tim Flannery calls “third way technologies” — safe methods to reduce carbon dioxide levels that could be adopted in concert with large-scale reductions in greenhouse gas emissions. In an interview with Yale Environment 360, Flannery explains that unlike risky geo-engineering schemes, these approaches “strengthen Earth’s own self-regulatory system by drawing CO2 out of the atmosphere in ways the planet naturally does already.”
Read the interview.

24 Nov 2015: Transportation and Buildings
Drove Rise in U.S. Energy Emissions Last Year

Energy-related carbon dioxide emissions in the U.S. rose last year by 1 percent, marking the second consecutive year of

Low fuel prices drove higher vehicle emissions.
increased energy emissions despite advances in efficiency and growing use of less carbon-intensive fuels, such as natural gas. The transportation sector and residential and commercial buildings largely drove the increase, the U.S. Energy Information Administration reports. Lower fuel prices and an improving economy led to more consumption of gasoline and other fuels, the EIA says, which more than offset gains in vehicle fuel economy. Emissions from commercial and residential buildings also rose last year. While residential energy use is mainly driven by weather on a year-to-year basis — the first quarter of 2014 was particularly cold in many regions — both weather and economic gains led to more energy consumption in commercial buildings, the report says. Looking at energy emissions by another measure, the U.S. made better progress, as CO2 emissions per unit of gross domestic product declined.


23 Nov 2015: In Major Shift, Alberta
Adopts New Plans to Fight Climate Change

In a sharp reversal from the previous government, Alberta’s recently elected premier has announced a host of new climate measures, including a tax on carbon, the phase-out of coal emissions by 2030, a transition to
Rachel Notley
Dave Cournoyer/Flickr
Rachel Notley
renewable energy sources, and CO2 emissions limits on the province’s massive tar sands industry. Premier Rachel Notley said Sunday that the province will adopt an economy-wide carbon tax of 20 Canadian dollars in 2017, increasing to 30 dollars in 2018. She vowed that two-thirds of the electricity now produced by coal-fired power plants will be replaced with renewable energy. And she said Alberta will impose a carbon emissions limit on the oil sands industry of 100 megatons; the industry currently generates 70 megatons of carbon annually. “This is the day we step up, at long last, to one of the world’s biggest problems: the pollution that is causing climate change," Notley said.

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