According to newly-released figures from the National Oceanic and Atmospheric Administration, more than 15,000 weather records were set in the United States last month. All 50 states set new daily temperature records in March; for 25 states east of the Rocky Mountains it was the hottest March ever. John Harold, a farmer in Olathe, Colorado, says it’s been hard not to notice the strange weather fluctuations. Andrew Revkin is senior fellow at the Pace Academy for Applied Environmental Studies at Pace University. He also writes the “Dot Earth” blog for The New York Times Op-Ed section, which examines efforts to balance human affairs with the planet’s limits. Revkin says this year’s records are an indication of what to expect in the future.