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Twenty years of blogging in hindsight

Real Climate

It’s 20 years since we started blogging on climate here on RealClimate (December 10, 2004). There is one graph that perhaps tells the story of what has happened since 2004, and it’s the Keeling curve shown in the figure below. Another thing I didn’t anticipate in 2004 was efforts such as the World Weather Attribution (WWA).

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What’s the Role of the Land Carbon Sink in Achieving US Climate Goals?

Union of Concerned Scientists

A brief history of the land carbon sink Every year, globally, land-based ecosystems remove roughly 30% of human emissions from the atmosphere, slowing both the accumulation of atmospheric CO2 and increases in global temperature.

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The AMOC: tipping this century, or not?

Real Climate

We have direct AMOC measurements only since 2004, a time span too short for this type of study. Now that the dust has settled, here some thoughts on the criticisms that have been raised about this study. I’ve seen two main arguments there. Do the data used really describe changes in AMOC? 2018 ( PDF ; I’m a coauthor on that paper).

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DEP Invests Over $2.7 Million In Alternative Fuel Transportation Projects To Improve Air Quality & Public Health, Reduce Greenhouse Gas Emissions

PA Environment Daily

The AFIG Program funds projects that replace older gasoline- or diesel-fueled vehicles with cleaner fuel vehicles that helps reduce emissions of carbon monoxide, particulate matter, volatile organic compounds, nitrogen oxides, and carbon dioxide, a principal greenhouse gas. Click Here for a list of grants awarded.

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Energy news as COP23 is taking place in Germany

Edouard Stenger

To put this in perspective, Kees van der Leun tweeted last month, ” Annual global solar PV market hit the 1 GW mark in 2004. So, if our answers to climate change and air pollution are growing, with even global coal consumption peaking, why is there still more and more carbon dioxide in our atmosphere?

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DEP Blog: Abandoned Coal Mine Reforestation Initiatives Healing The Land

PA Environment Daily

Since 2004, ARRI has reforested thousands of acres of reclaimed coal mined land throughout Appalachia to restore the areas to their natural appearance while gaining the many benefits the newly planted trees seedlings will provide, such as removing carbon dioxide from the air and helping to conserve water resources.

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EPA Recognizes 2 PA Companies With Top Environmental Performers and Leaders For Freight Supply Chain Efficiency

PA Environment Daily

Since 2004, SmartWay Partners have avoided emitting more than 143 million metric tons of carbon dioxide (CO2,), 2.7 million tons of nitrogen oxides (NOx) and 112,000 tons of particulate matter (PM), while saving $44.8