Global warming, blamed mainly on human burning of fossil fuels that produce heat - trapping carbon dioxide, is projected to bring more floods, droughts and to raise world sea levels. (reuters.com)
Since 1900, human burning of fossil fuels emitted an average of 3 petagrams per year — even closer to the rate 55.5 million years ago. (sciencedaily.com)
According to a paper by Gerald Meehl at the National Center for Atmospheric Research, models show that if human burning of fossil fuels is not curtailed there could be 20 heat records for every cold record by 2050, and by 2100 the ratio could be 50 to 1. (realclimate.org)