February is the first month of 2015 with an average carbon dioxide level above 400 ppm.
A Minnesota Quartet, Tuned to Temperatures from the Equator to the Arctic, Performs Global Warming
Fiddling a Warming Tune: 600 years of climate variations, as told by fiddle.
The NOAA releases monthly and annual analyses of global climate conditions. They present major climate anomalies and events - droughts, floods, storms, and the like - on a convenient map.
May Was Planet's Hottest Month on Record, NASA Says
Climate Central: Percent Chance’ 2016 Will Be Hottest Year as April continued a remarkable streak of record-warm months. T: Temperature records, Climate science
Tracking Carbon Emissions A footprint comparison of total carbon dioxide emissions by nation and per capita shows there’s plenty of room for smaller countries to reduce their carbon footprints. By Stanford Kay