Department: Forum


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.
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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.
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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.
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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.

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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.

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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.
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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.
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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.
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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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e360 digest

Earth Observation Satellites Help
Scientists Understand Global Change


Global warming is affecting more than just atmospheric temperatures — it is also changing water cycles, soil conditions, and animal migrations. Earth observation satellites aid scientists in measuring and monitoring these changes so societies can better adapt. Although there are well over 1,000 active orbiting satellites, less than 15 percent are used to monitor Earth’s environment. Yale Environment 360 presents a gallery of satellites that scientists are using to better understand how the planet is changing.
View the gallery.

30 Jul 2014: New Maps of Peru Forests
Could Help Set Conservation Priorities

New, highly detailed maps of Peru's vegetation show that three-quarters of the country's forests — a biomass

Click to Enlarge

Carbon stocks across Peru
stock that sequesters more carbon than the combined annual CO2 emissions of the U.S. and China — lie outside of protected areas and are vulnerable to deforestation, according to an analysis by researchers in the U.S. and Peru. The maps, which should prove helpful to scientists, conservationists, and policymakers working to protect the forests, offer the most detailed view to date of the different types of vegetative cover and above-ground carbon stocks across Peru, with resolution at the one-hectare scale. The analysis found that the lowlands of southern Peru, which contain extensive bamboo cover, harbor significantly less carbon than other rainforest areas, and forests in active floodplains appear to store half as much carbon as other forests.

 

Five Questions for Jeffrey Sachs
On Decarbonizing the Economy

Thirty scientific institutions from 15 countries last week released a report for the United Nations outlining how
Jeffrey Sachs
Jeffrey Sachs

e360 Five Questions
the world’s major carbon dioxide-emitting nations can slash those emissions by mid-century. Called the Deep Decarbonization Pathways Project, the initiative aims to provide leaders with a plan of action in advance of a UN summit in September and climate negotiations in Paris in late 2015. Yale Environment 360 asked Jeffrey Sachs, director of Columbia University’s Earth Institute and a key player in the decarbonization project, five questions about the initiative and the prospects for global action on the climate front.
Read more.

29 Jul 2014: Danish Wind Power To Be Half
The Price of Coal and Natural Gas by 2016

Wind power has overtaken all other energy sources as the cheapest form of electricity in Denmark, with a cost

Frederikshavn, Denmark
roughly half that of coal and natural gas projected by 2016, according to an analysis by the Danish Energy Association (DEA). Home to major turbine manufacturers Vestas and Siemens, the country has been investing steadily in wind power since the 1970s and seems to be reaping the benefits of those investments now, analysts say. Electricity from two new onshore wind power facilities set to begin operating in 2016 will cost around 5 euro cents per kilowatt-hour, according to DEA calculations. The Danish government aims to meet 50 percent of the country's total electricity needs with wind power by 2020, and another 20 percent with other renewable sources. By 2050, the government aims to produce all electricity from renewable sources.

 

Interview: Where Will the Earth
Head After Its ‘Climate Departure’?

The term “climate departure” has an odd ring, but its meaning is relatively straightforward. It marks the point at which the earth’s climate begins to cease resembling
“Camilo
Camilo Mora
what has come before and moves into a new state where the extreme becomes the norm. Camilo Mora — a University of Hawaii biogeographer, ecologist, and specialist in marshaling big data for climate modeling — has calculated a rough idea for the time of the earth’s climate departure: 2047. That date varies depending on region, he says. But in a widely publicized paper published in the journal Nature last year, Mora and 13 colleagues explored the concept of climate departure and what it will mean for our planet. In an interview with Yale Environment 360, Mora explains why tropical regions will be most profoundly affected by climate change, why controlling population growth is at the core of the challenge posed by global warming, and the frustrations he and other scientists feel as their warnings about rising temperatures are ignored.
Read more.

28 Jul 2014: Trees Save Lives and Billions in
Health Costs Annually, Forest Service Finds

Trees are saving more than 850 human lives each year and preventing 670,000 cases of acute respiratory symptoms in the U.S., according to the first broad-scale

Click to Enlarge
Pollution removal by trees

Pollution removal by trees
estimate of trees' air pollution removal by U.S. Forest Service researchers. Looking at four common air pollutants — nitrogen dioxide, ozone, sulfur dioxide, and particulate matter with a diameter less than 2.5 microns — researchers valued the human health benefits of the reduced air pollution at nearly $7 billion annually in a study published in the journal Environmental Pollution. The benefits of trees vary with tree cover across the nation, the researchers note. Tree cover in the United States is estimated at 34.2 percent overall, but varies from 2.6 percent in North Dakota to 88.9 percent in New Hampshire. While the pollution-removal capabilities of trees led to an average air quality improvement of less than 1 percent, the impacts are substantial, the study found.

 
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Photographer Peter Essick documents the swift changes wrought by global warming in Antarctica, Greenland, and other far-flung places.
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Warriors of Qiugang
The Warriors of Qiugang, a Yale Environment 360 video that chronicles the story of a Chinese village’s fight against a polluting chemical plant, was nominated for a 2011 Academy Award for Best Documentary (Short Subject). Watch the video.


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Top Image: aerial view of Iceland. © Google & TerraMetrics.

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Colorado River Video
In a Yale Environment 360 video, photographer Pete McBride documents how increasing water demands have transformed the Colorado River, the lifeblood of the arid Southwest. Watch the video.

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