Global average temperatures are generally higher in El Niño years vs. La Niña years.
The amount of carbon dioxide in the atmosphere has a strong correlation with rising temperatures.
As the globe continues to warm, it is already having an effect on the jet stream and corresponding weather patterns.
Climate change can be natural, but what’s happening now can’t be explained by natural forces.
Charles David Keeling's measurements provided the first significant evidence of increasing atmospheric carbon dioxide concentration in the atmosphere.
A snapshot of how 2012 stacks up against the five other warmest years ever recorded in the U.S.
Human-generated emissions of CO2 this year are expected to reach 35.6 billion tons. That’s up 2.6 percent from what was emitted in 2011, the previous record holder.
Recent human activity is having such a significant environmental impact on the planet that we may be entering a new geologic epoch, known as the Anthropocene.