Is it getting hotter in here? It isn’t just your imagination. This June beat several world records for toasty temperatures, showing how frighteningly fast global warming is taking hold. The National Oceanic and Atmospheric Administration reports that June was the fourth consecutive month with the hottest combined global land and surface temperatures on record. It was also the month with the warmest-ever land surfaces and the fourth-warmest oceans — and it marked the 304th consecutive month with a combined global land and surface temperature above the 20th century average. (The last month with “below-average” temperatures was February 1985.) Plus, so far, 2010 has been the warmest year on record.

So if that’s hot enough for you, take action now against climate change without breaking a sweat (at least from exertion): Sign the Center for Biological Diversity’s People’s Petition to Cap Carbon Dioxide Pollution at 350 Parts Per Million.