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The article discusses the U.S. policy on climate change. Topics discussed include President Donald Trump's criticism against the Paris climate agreement in 2015, his plan to withdraw from the agreement and the U.S. role in the United Nations Framework Convention on Climate Change. Also discussed are Trump's threat not to honor former president Barack Obama's pledge to reduce U.S. carbon emissions below 2005 levels by 2025 and the outlook for climate pledges for China and Germany.

This article reports on grass-roots efforts for environmental protection in the United States. Could the next grass-roots revolution in America be over climate change? George Bush stomped out of the UN's Kyoto treaty on global warming three years ago and did a U-turn on campaign pledges to regulate emissions of carbon dioxide (CO2). Since then, he has refused to come up with sensible domestic policies. Yet that very obstinacy has fomented a backlash in the states. Massachusetts led the way by imposing curbs on CO2 emissions from power plants. The New England states have also joined the eastern provinces of Canada in vowing to cut emissions of greenhouse gases by 12% by the end of the decade. Not to be outdone by Yankees, California, Oregon and Washington have now banded together to tackle climate change. California has passed the country's first law regulating emissions of greenhouse gases from cars.

At the beginning of 2001 the Intergovernmental Panel on Climate Change released, as the main result of its massive Third Assessment Review, a set of figures that have become the most-cited numbers in the field of environmental policy, and quite possibly the most-cited numbers in any field of public policy. Two distinguished commentators--Ian Castles of the National Centre for Development Studies at Australian National University, formerly the head of Australia's national office of statistics; and David Henderson of the Westminster Business School--have put together a critique of the panel's Special Report on Emissions Scenarios. The projections imply that, even for the lowest emission scenarios, the average income of South Africans will have overtaken that of United States citizens by a very wide margin by the end of the century. In fact the U.S. per capita income will then have been surpassed not only by South Africa's, but also by that of other emerging economic powerhouses, including Algeria, Argentina, Libya, Turkey and North Korea.

Discusses the views of United States President George W. Bush on global warming. How he rescinded on a campaign promise to curb carbon dioxide emissions; His views on the role of the U.S. in stopping climate change; Opinion that Bush's environmental policy is hypocritical; Efforts of the European Union to stop global warming.