China is expected this month to formally submit its pledge for a global climate treaty that countries are seeking to finalize by December, the United Nations' top adviser on climate change said Thursday. Chinese President Xi Jinping sent a letter to Ban Ki-moon last week about the issue, U.N. assistant secretary-general Janos Pasztor told The Associated Press. Pasztor did not give details.
The U.S. pledged to cut its greenhouse gas emissions up to 28% as part of a global treaty aimed...
A study found government biofuel policies rely on reductions in food consumption to generate...
A U.S. envoy for climate change said Friday that China and the U.S. are working more closely...
The world still isn't close to preventing what leaders call a dangerous level of man-made warming, a new United Nations report says. That's despite some nations' recent pledges to cut back on carbon dioxide emissions. The report looks at the gap between what countries promise to do about carbon pollution and what scientists say needs to be done to prevent temperatures rising another two degrees.
In spite of the broad scientific consensus about its existence, global warming remains a contentious public policy issue. Yet it’s also an issue that requires a public consensus to support policies that might curb or counteract it. According to research, the task of educating the public about climate change might be made easier or more difficult depending on their perception of short-term versus long-term temperature changes.
Wyoming, the nation's top coal-producing state, is the first to reject new K-12 science standards proposed by national education groups mainly because of global warming components. The Wyoming Board of Education decided recently that the Next Generation Science Standards need more review after questions were raised about the treatment of man-made global warming.
The U.N.'s expert panel on climate change is under pressure this week as it considers whether geoengineering should be part of the tool-kit that governments use to keep global warming in check. Drafts leaked before the conference only mentioned one of the proposed options, removing carbon dioxide from the air and storing it underground. But some countries support solar radiation management as well.
After concluding that global warming almost certainly is man-made and poses a grave threat to humanity, the U.N.-sponsored Intergovernmental Panel on Climate Change, or IPCC, is meeting next week in Berlin to chart ways in which the world can curb the greenhouse gas emissions that scientists say are overheating the planet. It is also trying to give estimates on what it would cost.
A dozen research papers in a recent special issue of the journal Climate Change are devoted to the topic of geoengineering. They include the most detailed description yet of the proposed Oxford Principles to govern geoengineering research, as well as surveys on the technical hurdles, ethics and regulatory issues related to deliberately manipulating the planet’s climate.
With two days left at the U.N. climate talks in Warsaw, there was commotion Wednesday after negotiators for developing nations said they walked out of a late-night meeting on compensation for the impact of global warming. Rich and poor nations are struggling with a yawning rift as developing countries look for new ways to make developed countries accept responsibility for global warming and pay for it.
President Barack Obama's push to fight global warming has triggered condemnation from the coal industry across the industrial Midwest, where state and local economies depend on the health of an energy sector facing strict new pollution limits. But such concerns stretch even to New England, an environmentally focused region that long has felt the effects of drifting emissions from Rust Belt states.
In a speech Tuesday at Georgetown University, Barack Obama is expected to announce he's issuing a presidential memorandum to launch the first-ever federal regulations on carbon dioxide emitted by existing power plants, moving to curb the gases blamed for global warming despite adamant opposition from Republicans and some energy producers.
The U.S. Department of Energy's National Renewable Energy Laboratory and Argonne National Laboratory this week announced the release of the Transportation Energy Futures study, an assessment of avenues to reach deep cuts in petroleum use and greenhouse gas emissions in the transportation sector. The project suggests opportunities for 80% reductions by 2050
Geoengineering, the use of human technologies to alter the Earth's climate system has emerged as a potentially promising way to mitigate the impacts of climate change. But such efforts could present unforeseen new risks. That inherent tension, argue two professors, has thwarted both scientific advances and the development of an international framework for regulating and guiding geoengineering research.
According to a recent study from Rice University and the U.S. Environmental Protection Agency, there is good news and better news about ground-level ozone in American cities. While dangerous ozone levels have fallen in places that clamp down on emissions from vehicles and industry, the report suggests that a model widely used to predict the impact of remediation efforts has been too conservative.
Environmental groups hailed President Barack Obama's warning about climate change in his second inauguration speech, but said the president's words will soon be tested as he decides whether to approve the Keystone XL oil pipeline from Canada. Obama pledged Monday to respond to what he called "the threat of climate change," saying the failure to do so would be a betrayal of the nation's children and future generations.
Nearly 200 countries haggling over how to stop climate change—and how to pay for it—failed to reach a deal on schedule Friday, setting the stage for the wrangling to continue late into the night. The two-week U.N. conference in Doha was never meant to yield a global climate pact to curb emissions of greenhouse gases—that has been put off until 2015.