Climate Change

A scientific look at global change.
Climate Change Evidence At A Glance
Global Surface Temperature
Data source: NOAA
years
Atmospheric CO2
Data source: NOAA
thousands of years ago
Sea Level
Data source: CLS/Cnes/Legos
years
Arctic Sea Ice (September)
years
Surface Temperature CO2 Sea Level Sea Ice
Climate Change News
By Andrea Thompson, Climate Central
September 4, 2015
Arctic Sea ice is melting at such a rapid pace this summer that experts believe it could break records.
By Chris Dolce
August 20, 2015
July 2015 was the warmest month on record for the earth dating back to January 1880.
August 17, 2015
Food production "shocks" will likely go from something that happens once a century to something that happens every 30 years or so, a new report says.
Feeling Skeptical?
Climate Change Facts
Local Climate Change
Temperature Precipitation Snowfall*

Climate Change Blogs

Arctic Sea Ice May Reach Second-Lowest Extent on Record This Month
By: Dr. Jeff Masters
Published: September 3, 2015
A burst of late-season loss over the last several weeks has put the Arctic Ocean’s ice cover within reach of the lowest extent observed in any year except 2012. In the tropics, a new system moving off Africa could become a depression over the next five days, and Tropical Storm Fred is barely hanging on to life, while Hurricanes Jimena and Ignacio and Typhoon Kilo continue to prowl the Pacific.
U.S. Wildfires 2015: Are The Worst Yet To Come?
By: Dr. Jeff Masters
Published: September 2, 2015
Thus far, 2015 has been one of the worst U.S. wildland fire seasons since modern records began, largely due to massive fires in Alaska. As fall approaches, the risk of major fire continues across the western states, with the role of climate change under increased scrutiny. Meanwhile, the Northern Hemisphere tropics are beginning to settle down for a spell after a hyperactive August.
July 2015: Warmest Month on Record Globally
By: Dr. Jeff Masters
Published: August 20, 2015
July 2015 was the warmest single month in 1627 months of global records that go back to January 1880, said NOAA's National Centers for Environmental Information on Thursday. The globally averaged temperature above both land and ocean surfaces was 1.46°F (0.81°C) ahead of the 20th-century average. This trumps the record for any month that was set in July 1998, surpassing that value by 0.08°F (0.14°C).
Wunderground's Climate Change Position
Based on the evidence, more than 97% of climate scientists have concluded that human-caused climate change is happening. Climate change is already causing significant impacts to people and ecosystems, and these impacts will grow much more severe in the coming years. We can choose to take economically sensible steps to lessen the damage of climate change, and the cost of inaction is much higher than the cost of action.
Climate Summary
State of the Climate
July 2015: Warmest Month on Record Globally

July 2015 was the warmest single month in 1627 months of global records that go back to January 1880, said NOAA's National Centers for Environmental Information on Thursday. The globally averaged temperature above both land and ocean surfaces was 1.46°F (0.81°C) ahead of the 20th-century average. This trumps the record for any month that was set in July 1998, surpassing that value by 0.08°F (0.14°C).

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