Climate Research

Research on the extreme weather and Arctic Amplification connection continues. Unlike previous reports, this research finds no statistically significant link between the two. It points out that "observed trends in weather patterns are complex and likely not simply understood in terms of Arctic Amplification alone".


This new study takes a look at how extreme weather events affect climate change - feeding the cycle.

This Week in Climate News

July Adds to Globe's String of 341 Warm Months

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A current NASA research project is investigating how summer storms and rising pollution from wildfires and cities can change our climate.


NOAA, the Army Corps of Engineers, and U.S. Geological Survey are remapping coastal waters post-Sandy.


Even though the Southeast U.S. was cooler than average, this July was globally the 6th warmest since records began in 1880. Here are more climate highlights from the U.S. and around the world.

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Despite the recent slowdown in warming rate, this past decade was the world's warmest on record

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Story Highlights

  • Looking at temperatures over longer stretches of time gives us a better picture of the overall trend. That long term trend is clear - we are warming globally.

  • Despite the recent slowdown in the rate of warming, this past decade was the world's warmest on record.

  • We can also see these warming trends in more local data across the United States and in your own state.

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Global warming is a long term trend in rising temperatures around the world. Global temperatures averaged out annually can show trends and shed light on natural climate variability. But looking at temperatures averaged over decades can provide a clearer picture of the trend. As the graphic above shows, that long-term trend is clear - global temperatures are on the rise.

It's easy to see that there was a sharp increase in global average surface temperatures from the 1970s through the end of the 1990s. This graphic also shows that global temperatures have generally been rising since the 1880s, and despite the recent slowdown in the rate of warming, the 2000s were the hottest decade on record over the last 130 years.

The recent slowdown in global temperature rise is an area of active research. The UK’s Hadley Center released a series of three reports documenting the trend, possible causes, and its implications for future climate projections. One of the most plausible reasons for the recent slowdown in warming is that the deep ocean has been acting as a heat sink, taking up more warming than the land has in recent years. The series of reports concludes: “The recent pause in global surface temperature rise does not invalidate previous estimates of climate sensitivity. Nor does it materially alter the risks of substantial warming of the Earth by the end of this century.” Another sign climate change hasn’t stopped is that other climate indicators have continued with no signs of reversing, from Arctic sea ice and glacial retreat to rising seas.

In the next two graphics, we break down the global trend to more local levels - first, for the U.S. and second, for your state. Even though there have been signs of slight cooling across the Southeast during occasional stretches, each and every state across the U.S. has been warming overall since 1970.

Click below for a high-resolution version
WITH a title - WITHOUT a title

Click below for a high-resolution version
WITH a title - WITHOUT a title

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