This side-by-side animation shows the difference between a lower carbon emissions future and a higher carbon emissions future.
Light yellow represents locations where the temperature exceeds 100°F fewer than 10 days per year. Dark red represents locations where the temperature exceeds 100°F more than 120 days per year.Learn More >>
This animation illustrates how the summer climate of three states — Michigan, Illinois, and New Hampshire — would change by late this century if carbon dioxide emissions continue to grow.
The colors of the underlying map show the current annual average temperatures across the United States. The southward movement of the three states illustrates how dramatically climate would change.
The climate of Michigan by late this century might resemble that of Oklahoma today, while that of Illinois might come to resemble Texas today.Learn More >>
ClimateTalk: Science & Solutions
Susan Hassol speaks about climate change, language, and ideology at the University of Montana TEDx event in February 2015.
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COMMON CLIMATE QUESTIONS
Is the Earth’s climate warming?
Yes, it is an unequivocal fact that the Earth’s average temperature continues to rise, despite some natural year-to-year fluctuations. ...Learn More >>
How can we trust predictions about our climate for decades or centuries in the future?
When people wonder about the degree of certainty in global warming predictions versus next week's weather report, they are confusing climate and weather. ...Learn More >>
How do we know recent climate change is caused by human factors rather than natural factors?
Climate changes observed over recent decades are inconsistent with trends caused by natural forces but are totally consistent with the increase in human- ...Learn More >>
Do climate scientists agree that the world is warming and that humans are the cause?
More than 97% of climate scientists have concluded that human caused global warming is happening. It is well established that human activity is the dominant cause ...Learn More >>
How do we know recent warming is NOT caused by the Sun?
Scientists have been measuring the amount of the Sun’s energy reaching the top of Earth’s atmosphere using sensors on satellites since 1978. ...Learn More >>
Does the fact that cities are warmer than the surrounding countryside affect the global temperature record?
Scientists have accounted for these local effects and have verified that they do not skew the global temperature record. For example, one test scientists ...Learn More >>
What does the ice core record tell us about the relationship between temperature and carbon dioxide in the past?
We know from ice core records that temperature and carbon dioxide levels are closely correlated. ...Learn More >>
What did most climate scientists in the 1970s predict about future climate?
The vast majority of published climate science papers in the 1970s were related to the same concern that prevails today: warming due to the increase in heat-trapping gases. ...Learn More >>
How do volcanoes influence climate?
Major volcanic eruptions have a short-term cooling influence on climate due to the particulate haze they cause. Their warming influence (through CO2 emissions) is insignificant compared to fossil fuel burning. ...Learn More >>
How reliable are climate models?
Climate models are tested against what we know happened in the past and they do accurately map past climate changes. Climate models have also been proven to make accurate predictions ...Learn More >>