Climate change due to global warming is inevitable. In fact, it's happening now. What are the potential consequences for people in the United States and around the world? What can be done to prepare? Also, tens of thousands of Iraqis protest on this, the fourth anniversary of the fall of Baghdad and, on Reporter's Notebook, from Arizona's border with Mexico to new battles on Capitol Hill, President Bush re-visits immigration reform.
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Climate change is no longer a question of "if" or "when." The impact of warming is evident right now—and so is the human contribution. Even if greenhouse-gas emissions are significantly reduced, the change is inevitable. So it's time to prepare for floods, droughts and other catastrophes. That's the latest after four days of debate between scientists and government bureaucrats from more than 100 countries. The Intergovernmental Panel on Climate Change has released the second in a series of reports on climate change. The first concluded with 90% certainty that human activity is the main cause of global warming since 1950. Who will be hit the hardest? What does it mean to "prepare?" What are the potential consequences in the United States?
Martin Parry, Co-Chair of the Intergovernmental Panel on Climate Change's Working Group II
Stephen Schneider, Co-author of the IPCC's Fourth Assessment Report
Andrew Revkin, New York Times
Eileen Claussen, President, Pew Center on Global Climate Change
On Saturday, thousands of people marched in Los Angeles, some of them claiming that President Bush had broken a promise on immigration reform. Bush himself had yet to present his latest proposal, which he did today near Yuma, where he viewed an unmanned aerial surveillance vehicle and inspected progress on 700 miles of fencing along the border with Mexico. Then he talked about the need for what he calls "comprehensive" immigration reform, as we hear from Jonathan Weisman of the Washington Post.
On this fourth anniversary of the fall of Baghdad, tens of thousands of anti-American protesters draped themselves in Iraqi flags today in the holy cities of Kufa and Najav, marching to the tune of the powerful Shiite cleric Muqtada al-Sadr. Edward Wong is in Baghdad for the New York Times.
Edward Wong, Asia Correspondent, New York Times