The Los Angeles Times, in an editorial titled “You can’t explain away climate change: Some hold that global warming stopped in 1998, but scientists know better,” writes:
You probably won’t hear it from columnist George F. Will, Fox News commentators or the plethora of conservative blogs that have claimed global warming essentially stopped in 1998, but recent figures released by the National Oceanic and Atmospheric Administration show that global land and ocean surface temperatures in June were the highest since record-keeping began in 1880. What’s more, the first half of 2010 was the hottest such period ever recorded, and Arctic sea ice melted at a record-setting pace in June.
The heat can probably be attributed at least in part to periodic and entirely natural changes in ocean temperatures and surface air pressure — the El Niño/La Niña phenomena most likely played a role. But the fact that peak years are getting hotter while even relatively “cool” years now tend to remain above historical averages (the 10 warmest years on record all occurred within the last 15 years, according to the NOAA) shows that something else is at work. A consensus of climate scientists worldwide, including not only the United Nations’ Intergovernmental Panel on Climate Change but the national scientific academies of the United States and the rest of the developed world, have identified that “something else” as anthropogenic (human-caused) greenhouse gases, which reflect the sun’s heat back onto the Earth rather than letting it escape into space.