Extreme Events

Small island nations aridity
April 19, 2016

Future changes in freshwater availability are a major concern in the context of climate change. New research finds that overall changes to island freshwater balance will shift towards greater aridity for over 73% of 80 globally distributed island groups identified, impacting 16 million people by mid-century.

ENSO and droughts and flooding
November 4, 2015

In the future, the Pacific Ocean's temperature cycles could disrupt more than just December fishing. Known collectively as the El Niño Southern Oscillation, or ENSO, the changing seasonal phenomena known as El Niño and La Niña could lead to at least a doubling of extreme droughts and floods in California later this century.

Cold winter days in US
October 13, 2015

In early January 2014, an Arctic air outbreak brought extreme cold and heavy snowfall to central and eastern North America, causing widespread disruption and monetary losses. However, new research using state-of-the-art climate model simulations finds that the risk of North American daily cold extremes decreases in the future.

Coral reefs Guam
October 5, 2015

Over the coming decades, the tropical Pacific is likely to experience more extreme sea level swings on timescales of several years. The culprit is a change in the El Niño-Southern Oscillation and its characteristic Pacific wind response, according to a new study using CMIP5 climate change projections.

Climatology of warm season
September 25, 2015

Arid and semi-arid regions are projected to experience the most adverse impacts of climate change, and intensifying drought and precipitation extremes are found in the observational record and current global climate projections of the IPCC report.

Extreme precip
August 24, 2015

Extreme precipitation and associated flooding has a high societal and economic cost. In the Northeast US extreme precipitation has increased by more than 70% in the last 50 years and is projected to continue to increase.

Sea level rise rate for 2009-2010
March 23, 2015

The coastal sea levels along the Northeast Coast of North America show significant year-to-year fluctuations in a general upward trend. Analysis of long-term tide gauge records along the North American east coast identified an extreme sea-level rise event during 2009–2010. Within this relatively brief two-year period, coastal sea levels north of New York City jumped by up to 128 mm.

Hurricane frequency in model runs
February 2, 2015

Climate extremes such as hurricanes and typhoons can cause death and destruction for communities around the world. Scientists are interested in studying both the predictability and possible future changes in the frequency and intensity of such storms.

Hurricane storm track
January 22, 2015

Tropical cyclones are among the most devastating storms on Earth. Tropical cyclone activity in the North Atlantic displays large interannual variability in both number and track density. Recent studies show that global high-resolution models have remarkable skill in simulating the interannual variability in cyclone counts, implicating strong control by sea surface temperatures patterns.

December 19, 2014

To understand the increased number of cold extreme events in recent years, a study conducted by an international team of US and Korean scientists suggests that the recently drastic reduction of Arctic sea ice cover could be the key driver.

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