Climate Change

A scientific look at global change.
Climate Change Evidence At A Glance
Global Surface Temperature
Data source: NOAA
Atmospheric CO2
Data source: NOAA
thousands of years ago
Sea Level
Data source: CLS/Cnes/Legos
Arctic Sea Ice (September)
Surface Temperature CO2 Sea Level Sea Ice
Climate Change News
By Jon Erdman
October 9, 2015
A new report says September's warmth smashed records.
By Alison Kanski,
September 29, 2015
Storm surges along the Northeast coast are getting higher and higher, which is bad news for New York City.
By Sean Breslin
September 28, 2015
Scientists say the presence of this cold area is bad news about climate change, not good.
Feeling Skeptical?
Climate Change Facts
Local Climate Change
Temperature Precipitation Snowfall*

Climate Change Blogs

Deadly Worldwide Coral Bleaching Episode Underway--Earth's 3rd on Record
By: Dr. Jeff Masters
Published: October 9, 2015
Earth is entering its third worldwide coral bleaching event of the last 20 years--a disturbing example of how a warming planet can harm vital ecosystems--NOAA announced on Thursday. NOAA also released an eight-month outlook that projects even more bleaching to come in 2016.
Carbon Dioxide and Climate: What We Knew Then, What We Know Now
By: Dr. Jeff Masters
Published: September 22, 2015
We’re in the midst of a landmark period for our changing climate: the warmest year thus far in the warmest decade in global records. This is also a crucial time for dialogue on climate change, as we approach a major UN meeting in Paris this December. How have emissions of carbon dioxide evolved over the last 45 years, and how will that shape the negotiations in Paris?
El Niño and California Drought: Simplistically
By: Dr. Ricky Rood
Published: September 9, 2015
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
Earth Has its Hottest Summer and Hottest August on Record

August 2015 was Earth's hottest August on record, and the Northern Hemisphere summer period of June-July-August was the hottest summer since record keeping began in 1880, said NOAA. NASA rated August 2015 as the 2nd warmest August on record. August 2015's warmth makes the year-to-date period (January - August) the warmest such period on record, according to both NOAA and NASA.