Forest Responses to Increasing Aridity and Warmth in the Southwestern United States

Proceedings of the National Academy of Sciences (Published online before print: doi: 10.1073/pnas.0914211107)  / by A. Park Williams, Craig D. Allen, Constance I. Millar, Thomas W. Swetnam, Joel Michaelsena, Christopher J. Stilla and Steven W. Leavitt (open access article) http://www.pnas.org/content/early/2010/06/29/0914211107.abstract In recent decades, intense droughts, insect outbreaks, and wildfires have led to decreasing tree growth … Continue reading »

Evaluating Limits on Markets for Emissions Allowances

Director’s Blog at the Congressional Budget Office / by Douglas Elmendorf http://cboblog.cbo.gov/?p=1719 Congress recently considered creating a nationwide cap-and-trade program that would limit emissions of greenhouse gases below the levels projected under current law and would allow trading of rights, or allowances, to produce those emissions. The ability to buy and sell allowances would reduce … Continue reading »

The Cancun Agreements: Text and Analysis

United Nations Climate Change Conference Cancun – COP 16 http://unfccc.int/files/meetings/cop_16/application/pdf/cop16_lca.pdf (advanced unedited version of Outcome of the Work of the Ad Hoc Working Group on Long-term Cooperative Action Under the Convention) http://unfccc.int/files/meetings/cop_16/application/pdf/cop16_kp.pdf (advanced unedited version of Outcome of the Work of the Ad Hoc Working Group on Further Commitments for Annex I Parties under the … Continue reading »