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Migration Dialogue provides timely, factual and nonpartisan information and analysis of international migration issues through five major activities: the newsletters Migration News and Rural Migration News, Changing Face and other Research & Seminars, and the Sloan West Coast Program on Science and Engineering Workers.
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President Obama used Earth Day on April 22, 2015 to argue for action on climate change "before it is too late." Many other world leaders called for "new economic development models" to prevent average world temperatures from rising as more greenhouse gases are trapped in the atmosphere.
The US promised to the United Nations Framework Convention on Climate Change that it would reduce greenhouse-gas emissions 25 percent by 2025 and 80 percent by 2050. Critics pointed to the high costs and what they consider negligible impacts of these emission reductions.