Dumping Money

Illinois coal plants are closing even as fossil fuel objections stall energy bill again

Coal plant

In a surprise announcement last Thursday, NRG said it would close its Waukegan and Romeoville coal plants, but the community impacts are unclear as “just transition” provisions remain held up in state energy bill negotiations.

Illinois coal plants are closing even as fossil fuel objections stall energy bill again is an article from Energy News Network, a nonprofit news service covering the clean energy transition. If you would like to support us please make a donation.

Rapid increases and extreme months in projections of United States high-tide flooding

Nature Climate Change, Published online: 21 June 2021; doi:10.1038/s41558-021-01077-8

High-tide flooding (HTF) is more likely with sea-level rise. Projections along the United States coastline, considering likely sea-level rise and tidal amplitude cycles, suggest increased HTF event clustering in time and rapid increases in annual HTF frequency as early as the mid-2030s.

Asymmetry in the climate–carbon cycle response to positive and negative CO2 emissions

Nature Climate Change, Published online: 21 June 2021; doi:10.1038/s41558-021-01061-2

It is commonly assumed that the climate response to CO2 removals is equal in magnitude and opposite in sign to the response to CO2 emissions. The response, however, is asymmetric, meaning that offsetting CO2 emissions with equal removals could lead to a different climate than avoiding the emissions.

Emergence of seasonal delay of tropical rainfall during 1979–2019

Nature Climate Change, Published online: 21 June 2021; doi:10.1038/s41558-021-01066-x

Tropical rainfall exhibits cyclic north–south migration tracking the warmer hemisphere, and climate warming will delay this seasonally over land. Climate models and gridded precipitation data suggest a delay of about 4 days since 1979 is now detectable over Northern Hemisphere land and the Sahel.

Major Ocean-Observing Satellite Starts Providing Science Data

In Brief:

Sentinel-6 Michael Freilich, the latest spacecraft to monitor sea surface height, releases its first science measurements to users.

After six months of check-out and calibration in orbit, the Sentinel-6 Michael Freilich satellite will make its first two data streams available to the public on June 22. It launched from Vandenberg Air Force Base in California on Nov. 21, 2020, and is a U.S.-European collaboration to measure sea surface height and other key ocean features, such as ocean surface wind speed and wave height.

One of the sea surface height data streams that will be released is accurate to 2.3 inches (5.8 centimeters) and will be available within hours of when the instruments aboard Sentinel-6 Michael Freilich collect it. A second stream of data, accurate to 1.4 inches (3.5 centimeters), will be released two days after collection. The difference in when the products become available balances accuracy with delivery timeliness for tasks like forecasting the weather and helping to monitor the formation of hurricanes. More datasets, which will be accurate to about 1.2 inches (2.9 centimeters), are slated for distribution later this year and are intended for research activities and climate science including tracking global mean sea level rise.

Find out more about Sentinel-6 Michael Freilich as it orbits Earth to collect critical sea level and atmospheric data. Click anywhere on the image to take it for a spin. View the full interactive experience and fly along with the mission in real time at Earth Now. Credit: NASA/JPL-Caltech

The satellite, named after former NASA Earth Science Division Director Michael Freilich, collects its measurements for about 90% of the world’s oceans. It is one of two satellites that compose the Copernicus Sentinel-6/Jason-CS (Continuity of Service) mission. The second satellite, Sentinel-6B, is slated for launch in 2025. Together, they are the latest in a series of spacecraft starting with TOPEX/Poseidon in 1992 and continuing with the Jason series of satellites that have been gathering precise ocean height measurements for nearly 30 years.

Shortly after launch, Sentinel-6 Michael Freilich moved into position, trailing the current reference sea level satellite Jason-3 by 30 seconds. Scientists and engineers then spent time cross-calibrating the data collected by both satellites to ensure the continuity of measurements between the two. Once they have are assured of the data quality, Sentinel-6 Michael Freilich will then become the primary sea level satellite.

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“It’s a relief knowing that the satellite is working and that the data look good,” said Josh Willis, project scientist at NASA’s Jet Propulsion Laboratory in Southern California. “Several months from now, Sentinel-6 Michael Freilich will take over for its predecessor, Jason-3, and this data release is the first step in that process.”

Keeping an Eye on Rising Seas

The ocean absorbs 90% of the heat trapped in the Earth system due to increasing atmospheric concentrations of greenhouse gases. The resulting warming seawater expands, contributing to the ongoing rise in global sea level. Monitoring ocean height is important because it helps forecasters predict things, including ocean currents and potential hurricane strength.

“These initial data show that Sentinel-6 Michael Freilich is an amazing new tool that will help to improve marine and weather forecasts,” said Eric Leuliette, program and project scientist at the

National Oceanic and Atmospheric Administration in Maryland. “In a changing climate, it’s a great achievement that these data are ready for release.”

Ocean Altimetry Programme Manager Julia Figa Saldana of EUMETSAT (European Organisation for the Exploitation of Meteorological Satellites), added that the operational release of the first data streams from this unique ocean altimetry mission was a significant milestone at the start of the Atlantic hurricane season.

“The altimetry data are now being processed at EUMESAT headquarters in Darmstadt, from where the satellite is also being controlled, and released to ocean and weather forecasting data users around the world for their operational usage,” Saldana said.

Scientists also anticipate using the data to gauge how fast sea levels are rising because of climate change. The expansion of warm seawater accounts for about one-third of modern-day sea level rise, while meltwater from glaciers and ice sheets accounts for the rest. The rate at which the oceans are rising has accelerated over the past two decades, and researchers expect it to speed up more in the years to come. Sea level rise will change coastlines and increase flooding from tides and storms. To better understand how rising seas will impact humanity, researchers need long climate records – something Sentinel-6 Michael Freilich will help provide.

More About the Mission

Sentinel-6/Jason-CS is being jointly developed by ESA (European Space Agency), EUMETSAT, NASA, and NOAA, with funding support from the European Commission and technical support from France's National Centre for Space Studies.

JPL, a division of Caltech in Pasadena, is contributing three science instruments for each Sentinel-6 satellite: the Advanced Microwave Radiometer, the Global Navigation Satellite System – Radio Occultation, and the Laser Retroreflector Array. NASA is also contributing launch services, ground systems supporting operation of the NASA science instruments, the science data processors for two of these instruments, and support for the U.S. members of the international Ocean Surface Topography Science Team.

For more about Sentinel-6 Michael Freilich, visit:

https://www.nasa.gov/sentinel-6

To access data from Sentinel-6 Michael Freilich, visit:

https://podaac.jpl.nasa.gov/

https://search.earthdata.nasa.gov/search?q=sentinel-6

News Media Contacts

Jane J. Lee / Ian J. O’Neill
Jet Propulsion Laboratory, Pasadena, Calif.
818-354-0307
jane.j.lee@jpl.nasa.gov / ian.j.oneill@jpl.nasa.gov

By greenwashing Shell, the Science Museum is failing young people

As a biology and chemistry student I love London’s Science Museum, but its acceptance of oil sponsorship for a climate change exhibition is inexcusable

The post By greenwashing Shell, the Science Museum is failing young people appeared first on Climate Home News.

New study highlights how GOP voters might shift on climate change

The post New study highlights how GOP voters might shift on climate change appeared first on Yale Program on Climate Change Communication.

Climate crisis getting short shrift from news outlets | Commentary

The post Climate crisis getting short shrift from news outlets | Commentary appeared first on Yale Program on Climate Change Communication.

Is Climate Change Putting the Future of Coffee at Risk?

At the African Fairtrade Convention, the International Research Institute for Climate and Society and Fairtrade will raise a red flag in a panel conversation on the intersection of human rights, climate change and coffee.