While many of us were wrapped up in March Madness this spring, Alaska residents and people across the globe participated in a different kind of competition.

Observations of global temperature going back to 1880 reveal that our planet's temperature is rising. This animation shows maps of yearly temperature compared to the 1981-2010 average from the start of the historical record through 2014--the wamrest year on record. Each year's map is synced with a graph showing the evolution of our planet's temperature as compared to the 20th-century average.

Earth’s surface temperature in 2014 was the warmest on record. Five months set new records for warmth, and a sixth tied for record warmest.

We're nine laps into the race to set a new global annual temperature record. NOAA climate scientist Deke Arndt talks about how this year's race might end--and why yearly rankings tell us less about the big picture of climate change than we might think.

CarbonTracker is a tool for modelling sources and sinks of carbon dioxide. Users can download the code, carbon dioxide data, and the tool's carbon flux estimates to conduct their own analyses or to help improve the system.

It’s only when we “zoom out” to the planet-wide scale that trends in surface temperature are obvious: despite a few, rare areas experiencing cooling, the vast majority of places across the globe are warming.

(VIDEO) Visualizing data makes it easier to understand exactly how an extreme weather event affected people’s lives, livelihoods, and property and how those things could be affected in the future. Knowing how to access and analyze the wide variety of datasets needed to study those events can be a challenge, however. NOAA's Weather and Climate Toolkit makes the job easier. 

 

Climate change is a global phenomenon, affecting weather events around the world.

In October 2003, a little-known think tank in the Department of Defense quietly released a report warning that climate change could happen so suddenly it could pose a major threat to our country's national security. Why was the Pentagon worried about abrupt climate change? Because new evidence from Greenland showed it had happened before. 

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