Climate Risk Areas Initiative News

Positive cloud feedback causing high sensitivity climate models to be less plausible for future climate projections 5 March 2021

Positive cloud feedback causing high sensitivity climate models to be less plausible for future climate projections

Cloud feedback refers to the response of clouds to surface temperature change. A positive cloud feedback would amplify greenhouse gas-induced warming and have a stronger cooling effect from aerosol‐cloud interactions. Uncertainties in predicting cloud feedbacks are the largest cause of spread in model predictions of future global warming.

A Seasonal Probabilistic Outlook for Tornadoes (SPOTter) in the U.S Using Tornadic Parameters 5 March 2021

A Seasonal Probabilistic Outlook for Tornadoes (SPOTter) in the U.S Using Tornadic Parameters

New research looks to expand severe weather outlooks beyond the synoptic weather time scale toward subseasonal-to-seasonal time scales.
Powerful New Software Helps Expedite Weather and Climate Forecasting Improvements 2 March 2021

Powerful New Software Helps Expedite Weather and Climate Forecasting Improvements

Weather and climate models are an essential part of predicting extreme weather events and projecting future changes in climate. Since these models can enable better disaster preparedness and reduce risks related to extreme weather, it is important to ensure that their simulations include limited bias or error.

Increasing Summertime Cloudiness May Lead to More Sea Ice Melt in the Arctic 28 February 2021

Increasing Summertime Cloudiness May Lead to More Sea Ice Melt in the Arctic

Accurately simulating summertime large-scale circulation, as well as the cloud response to circulation, is a critical step toward increasing the reliability of seasonal sea ice forecasts and the rate of future sea ice loss.

Researchers Investigate Historical and Future Risk of Rain-on-snow Flooding Events 28 February 2021

Researchers Investigate Historical and Future Risk of Rain-on-snow Flooding Events

In NCEI’s database of billion-dollar flooding disasters, many of the most significant events occur in the late Winter or early Spring due to rain and snowmelt overcoming stream and river channel capacity. These events individually frequently reach $5-10 billion in damages.

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Americans’ health, security and economic wellbeing are tied to climate and weather. Every day, we see communities grappling with environmental challenges due to unusual or extreme events related to climate and weather.