Comment Re:But I heard (Score 1) 249
The science on whether a) The planet is warming b) the cause is greenhouse gasses c) of which the primary culprit is CO2 d) which is caused by Human Activity is pretty much settled.
The parts that aren't settled are exactly how sensitive temperatures are to increases in CO2, exactly what increases in temperature will do to weather patterns how much this will play into the worsening of extreme weather events etc.
For instance we know that when the world was between 1 and 2 degrees hotter (125,000 years ago) that the sea level was 4-6 meters higher than it is today. What we aren't sure about is how long it will take for the ice to melt.