Brazil on Sunday became the first major developing country to pledge an absolute reduction in greenhouse gas emissions for an envisioned global pact against climate change.
The European Union is due Friday to formally set out its negotiating stand for the UN climate summit in Paris, including committing to 40 percent greenhouse gas emission cuts over 1990 levels.
Park Williams, 34, and a California native, is a bioclimatologist at Columbia University's Lamont-Doherty Earth Observatory. He is lead author on a recently published paper linking the California drought to global warming. ...
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