Christian Science: Top world leaders agreed Monday to dramatically reduce or altogether eliminate greenhouse gas emissions by 2100, in an announcement meant to build momentum for a global climate deal in Paris this December.
Pressure continues to mount on world leaders to accelerate a switch to cleaner energy sources particularly if the world is to avert the worst impacts of climate change. Emissions from coal, oil, and natural gas burned in power plants, cars, airplanes, and elsewhere have already warmed the...