2014 Atmosphere Ocean 
Union of Concerned Scientists
MARCH 26, 2025
Whats the point of a beach adventure if you cant even go into the ocean? How does raw sewage end up in our oceans and rivers? In some cities, a combined sewer system means that usually both wastewater and stormwater get treated to the same high standards before releasing into the ocean. San Francisco City and County v.
Union of Concerned Scientists
MARCH 18, 2025
Previous attribution research published by my Union of Concerned Scientists colleagues have allowed us to draw causal connections between sources of heat-trapping emissions and resulting impacts, like present day increases in atmospheric greenhouse gas concentrations, air temperatures, sea levels , ocean acidification , and wildfire burned area.
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Real Climate
AUGUST 12, 2021
Another clue indicating a shortcoming is if you look at the atmospheric CO 2 -concentrations over time to see how much impact the IPCC reports have had on the real policy-makers in the world (Figure below). The cause of our changing climate is the increase in atmospheric greenhouse gas concentrations that we have released into the air.
Real Climate
NOVEMBER 11, 2023
are used all over the world, based on calculations that quantify the effects of physical mechanisms and the way different parts of the atmosphere are connected to each other. The physics-based models describe how energy flows through the atmosphere and ocean, as well as how the forces from different air masses push against each other.
Circle of Blue
JUNE 1, 2022
Hatcheries like the Carson National Fish Hatchery, pictured here, breed millions of salmon and let them grow until they are mature enough to be released so they can try to swim to the ocean. Nearly 250 million young salmon, most of them from hatcheries, head to the ocean each year — roughly three times as many as before any dams were built.
Union of Concerned Scientists
JANUARY 24, 2023
In Elliott’s aftermath, the National Oceanic and Atmospheric Administration aptly called the storm a “historic arctic outbreak.” Going back a few more years, a polar vortex in January 2014 put much of the eastern half of the country into extreme cold, dropping temperatures 20 to 35 degrees Fahrenheit below average.
Real Climate
AUGUST 9, 2021
Projections of (a) temperature (constrained), (b) Arctic sea ice area (raw CMIP6), (c) ocean pH (constrained), and sea level (d)to 2100, and (e) to 2300 (constrained). Russell, "Climate Impact of Increasing Atmospheric Carbon Dioxide", Science , vol. Figure SPM 8. 1, SPM, AR5. Johnson, A. Lebedeff, P. Rind, and G. 957-966, 1981.
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