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Research: Global warming contributed to decline in tropical cyclones in the 20th century

Research: Global warming contributed to decline in tropical cyclones in the 20th century

The annual number of tropical cyclones forming globally has decreased by approximately 13% during the 20th century, and scientists say the main cause is a rise in global warming, according to a new study in Nature Climate Change by a group of international scientists including NOAA scientists.

June 27, 2022 0 Comments
Projected increase in space travel may damage ozone layer

Projected increase in space travel may damage ozone layer

Scientists from NOAA and The Aerospace Corp. modeled the climate response of the stratosphere to increased future emissions of black carbon from rockets burning kerosene fuel.

June 21, 2022 0 Comments
New research estimates the future emissions of potent greenhouse gases

New research estimates the future emissions of potent greenhouse gases

New research published in Atmospheric Chemistry and Physics projects future emissions of hydrofluorocarbons (HFCs), a class of potent greenhouse gasses, based on recent trends and compliance with current policies. The ability to observe trends of these compounds in the atmosphere is made possible by the long-term record of observations produced by the Halocarbons and other Atmospheric Trace Species (HATS) Division within NOAA’s Global Monitoring Laboratory.

June 6, 2022 0 Comments
Carbon dioxide now more than 50% higher than pre-industrial levels

Carbon dioxide now more than 50% higher than pre-industrial levels

Carbon dioxide measured at NOAA’s Mauna Loa Atmospheric Baseline Observatory peaked for 2022 at 421 parts per million in May, pushing the atmosphere further into territory not seen for millions of years, scientists from NOAA and Scripps Institution of Oceanography at the University of California San Diego announced today. 

June 6, 2022 0 Comments
Greenhouse gas pollution trapped 49% more heat in 2021 than in 1990, NOAA finds

Greenhouse gas pollution trapped 49% more heat in 2021 than in 1990, NOAA finds

The Annual Greenhouse Gas Index serves as a measure of global society's progress - or lack of progress - in reducing greenhouse gas emissions.

May 23, 2022 0 Comments
Evaporative demand increase across lower 48 states means less water supplies, drier vegetation, and higher fire risk

Evaporative demand increase across lower 48 states means less water supplies, drier vegetation, and higher fire risk

In the western U.S., the impacts of drought conditions in the 21st century are increasingly evident as extended fire seasons, dwindling water supplies, and widespread tree mortality are becoming more common occurrences. 

May 17, 2022 0 Comments
Study: Reducing human-caused air pollution in North America & Europe brings surprise result: more hurricanes

Study: Reducing human-caused air pollution in North America & Europe brings surprise result: more hurricanes

A new NOAA study published today in the journal Science Advances about four decades of tropical cyclones reveals the surprising result that reducing particulate air pollution in Europe and North America has contributed to an increase in the number of tropical cyclones in the North Atlantic basin and a decrease in the number of these storms in the Southern Hemisphere. The study also found that the growth of particulate pollution in Asia has contributed to fewer tropical cyclones in the western North Pacific basin. 

May 11, 2022 0 Comments
NOAA’s observations help EPA track emissions of a family of greenhouse gases

NOAA’s observations help EPA track emissions of a family of greenhouse gases

NOAA atmospheric measurements are helping to support a national inventory of emissions from an important family of greenhouse gases.

April 22, 2022 0 Comments
Celebrate Earth Day with NOAA scientists

Celebrate Earth Day with NOAA scientists

What does Earth Day mean to scientists at NOAA's Geophysical Fluid Dynamics Laboratory (GFDL) - especially during our current era of climate change?
 

April 22, 2022 0 Comments
This Earth Day, explore how NOAA science informs environmental policy

This Earth Day, explore how NOAA science informs environmental policy

April 22nd is Earth Day, and here at NOAA, we know a few things about the Earth.
April 22, 2022 0 Comments
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Oceanic and Atmospheric Research (OAR) - or "NOAA Research" - provides the research foundation for understanding the complex systems that support our planet. Working in partnership with other organizational units of the NOAA, a bureau of the Department of Commerce, NOAA Research enables better forecasts, earlier warnings for natural disasters, and a greater understanding of the Earth. Our role is to provide unbiased science to better manage the environment, nationally, and globally.

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