OSLO (Reuters) - Sun-dimming industrial pollution in China or signs that greenhouse gases trap less heat in the atmosphere than expected may help explain an apparent slowdown in global warming since 2000, experts say.
About 200 nations have set a goal of limiting warming to below 2 degrees C (3.6F) over pre-industrial times and determining the pace of climate change is vital to plan billion-dollar investments to shift from fossil fuels to greener energy.