Based on comprehensive data from multiple sources, the report defines 10 measurable planet-wide features used to gauge global temperature changes. The relative movement of each of these indicators proves consistent with a warming world. Seven indicators are rising: air temperature over land, sea-surface temperature, air temperature over oceans, sea level, ocean heat, humidity and tropospheric temperature in the “active-weather” layer of the atmosphere closest to the Earth’s surface. Three indicators are declining: Arctic sea ice, glaciers and spring snow cover in the Northern hemisphere.
(Graphic from the NOAA site.) Climate change is happening: many lines of evidence point in one direction - up. As in temperature rising. And snow cover and glaciers shrinking.
I have seen climate change deniers skip directly from denial to apathy between news articles. Yes - climate change is happening. No, it isn't too late to change teh way we live. As I've posted before, solutions exist.
