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CMIP6: Not-so-sudden stratospheric cooling

Real Climate

The dominant factors are changes in CO2 (a cooling), ozone depletion (a cooling), warming from big volcanoes, and oscillations related to the solar cycle. That means the greenhouse substances are basically just CO2 and ozone, and they absorb in quite different parts of the spectrum. But why is the stratosphere increasingly chill?

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DEP Suspends Enforcement Of California Heavy-Duty Diesel Emissions Control Program; Federal Standards Will Still Apply

PA Environment Daily

In 2002, the Department implemented the then current CARB emission standards for all Heavy-Duty Diesel engines and vehicles that have a gross vehicle weight rating of 14,000 pounds in response to an emissions cheating scandal in the late 1990s, when engine manufacturers installed emission control system defeat devices.

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Climate Change and Me

Academy of Natural Sciences

In his 2002 book The Philadelphia Area Weather Book , Schwartz takes readers on another journey through time to let us know what the weather’s been like lately… in a Philadelphia of 2075, after continued decades of global warming. Ozone smog pollution reached unhealthy levels on twenty days.

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DEP, DCNR, PennDOT Employees Recognized With Governor’s Award For Excellence For Environmental Projects

PA Environment Daily

This work has resulted in lower proposed emissions limits and decreased chances of ground level ozone pollution that can harm people’s health. The Governor’s Award for Excellence was created in 2002 by Gov. The DCNR, DEP and PennDOT employees were among 50 employees from 12 state agencies honored by Gov.

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Federal Courts Need to Allow the EPA to Clear the Air

Vermont Law

Every year, about 200,000 Americans die from smog, which is a mix of ozone and fine particulates (PM. The Clean Air Act (CAA) regulates smog, setting National Ambient Air Quality Standards (NAAQS) for ozone and PM. Many cities in the Northeast fail ozone and PM. SIP Call to control ozone in the Eastern half of the United States.

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Green Building may be our Best Hope to Repair the Planet

Greenbuilding Law

That substantive list is substantially the same as the original version of TRACI released by EPA in August 2002. The TRACI compilation of environmental effects was the basis of the US Green Building Council’s LEED green building rating program.

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A new cosmic dawn: peering across the universe with NASA’s James Webb Space Telescope

Physics World

Pegged for launch in 2007 at a cost of $1bn, in 2002 it was renamed the James Webb Space Telescope (JWST) after the former NASA administrator. Yet those dreams of a new telescope to study the evolution of galaxies and how stars and planets form quickly turned into a nightmare. But the telescope’s exoplanet studies will go deeper, too.

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