News & Features

Increasing ocean acidification threatens Alaska's valuable commercial and subsistence fisheries

Emily Greenhalgh | September 26, 2014

Alaska’s coastal waters are especially vulnerable to the drop in pH—acidification—that comes when excess carbon dioxide dissolves into the ocean from the atmosphere. These maps show relative risk levels for commerical and subsistence fisheries.

How Good Have ENSO Forecasts Been Lately?

Anthony Barnston | September 25, 2014

The forecasts often provided useful information for the coming few months, but had more limited accuracy and value in forecasting beyond that.

Summer's over in the Arctic: sea ice extent sixth smallest on record

Rebecca Lindsey | September 23, 2014

The annual minimum was 5.02 million square kilometers (1.94 million square miles), making 2014 the sixth smallest extent in the satellite era, which began in 1979.

Modeling regional aerosol variability over California and its sensitivity to emissions and long-range transport during the 2010 CalNex and CARES campaigns

September 22, 2014

A new paper: "Modeling regional aerosol variability over California and its sensitivity to emissions and long-range transport during the 2010 CalNex and CARES campaigns," has been published in the ... ...

Data Snapshots: August 2014 Global Temperature Anomaly

LuAnn Dahlman | September 22, 2014

August 2014's globally averaged surface temperature and sea surface temperatures both set new records.

No El Niño yet, but temperatures in tropical atmosphere are already warm

Adam Sobel | September 19, 2014

As of late August 2014, tropical atmospheric temperatures appear to be responding more strongly to the ocean than they typically do at this early stage of El Niño development.

What's the hottest Earth has been "lately"?

Michon Scott | September 17, 2014

Natural variability can explain much of Earth's average temperature variation since the end of the last ice age, but over the past century, global average temperature has risen from near the coldest to the warmest levels in the past 11,300 years.

U. S. temperature extremes and the polar jet stream

Rebecca Lindsey | September 16, 2014

Temperature extremes have been pretty unusual across the United States so far in 2014. Looking back over this time period quickly reveals at least part of what was going on: the polar jet stream got into a serious rut.

Observational evidence for interhemispheric hydroxyl parity

September 11, 2014

New research titled: "Observational evidence for interhemispheric hydorxyl parity," appeared in the Sept. 11 issue of Nature. The research, which is about the abundance of the hydroxyl radical on ... ...

ENSO + Climate Change = Headache

Tom Di Liberto | September 11, 2014

If you are someone who wants more or stronger ENSO events in the future, I have great news for you–research supports that. If you are someone who wants fewer or weaker ENSO events in the future, don’t worry–research supports that too.

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