New studies and the extreme weather of 2012 indicate the urgency of reducing emissions, and now a new study indicates that developed nations must halve their 1990 emissions by 2020 to limit warming to 2 degrees Celsius, reports Kelly Levin at WRI Insights. This is a far higher cut than previously thought necessarby by the Intergovernmental Panel on Climate Change, the most reputable body of climate scientists in the world. The study, published in Energy Policy, concludes this based on the new estimated trajectories of emissions expected out of developing countries. Halving emissions gives human civilization a medium chance of achieving that warming limit, thus preventing some of climate change’s worst impacts. Previous analyses of earbon emission cuts pledges by developed countries indicate these countries will reduce their emissions at most by 20% by 2020, so the gap between what is envisioned and what is really needed remains wide. To achieve a halving of emissions will require dramatic and quick changes in energy and land use policies globally, as well as sharing new technology with developing countries.
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Developed Nations Must Cut Emissions In Half By 2020, Says New Study http://insights.wri.org/news/2013/03/developed-nations-must-reduce-emissions-half-2020-says-new-study