“It’s a new atmosphere that humanity will have to contend with” — @blkahn #ActOnClimate @ClimateReality

Graphic credit @ClimateCentral.

From Climate Central (Brian Kahn):

On Tuesday, the Mauna Loa Observatory recorded its first-ever carbon dioxide reading in excess of 410 parts per million (it was 410.28 ppm in case you want the full deal). Carbon dioxide hasn’t reached that height in millions of years. It’s a new atmosphere that humanity will have to contend with, one that’s trapping more heat and causing the climate to change at a quickening rate.

In what’s become a spring tradition like Passover and Easter, carbon dioxide has set a record high each year since measurements began. It stood at 280 ppm when record keeping began at Mauna Loa in 1958. In 2013, it passed 400 ppm. Just four years later, the 400 ppm mark is no longer a novelty. It’s the norm…

Carbon dioxide concentrations have skyrocketed over the past two years due to in part to natural factors like El Niño causing more of it to end up in the atmosphere. But it’s mostly driven by the record amounts of carbon dioxide humans are creating by burning fossil fuels.

“The rate of increase will go down when emissions decrease,” Pieter Tans, an atmospheric scientist at the National Oceanic and Atmospheric Administration, said. “But carbon dioxide will still be going up, albeit more slowly. Only when emissions are cut in half will atmospheric carbon dioxide level off initially.”

Even when concentrations of carbon dioxide level off, the impacts of climate change will extend centuries into the future. The planet has already warmed 1.8°F (1°C), including a run of 627 months in a row of above-normal heat. Sea levels have risen about a foot and oceans have acidified. Extreme heat has become more common.

All of these impacts will last longer and intensify into the future even if we cut carbon emissions. But we face a choice of just how intense they become based on when we stop polluting the atmosphere.

Please consider coming by the Community Building at Thornton’s Community Park on May 16th. I’ll be speaking about the climate crisis as part of the Climate Reality Project. Children are welcome. We’ve already baked in a lot of uncertainty about the future for them. The presentation revolves around three questions: Should we act; Can we act; and, Will we act? I’ll bring you up to date on the engineering effort around renewable energy.

Details:

What: Climate Change is Water Change: Colorado Update
Where: Thornton Community Park Community Building (Near the swimming pool), 2211 Eppinger Blvd, Thornton, CO 80229
When: Tuesday, May 16, 2017, 6:00 PM – 7:30 PM

About the Climate Reality Project:

With glaciers melting, seas rising, and 14 of the 15 hottest years on record coming this century, the threat of climate change has never been clearer. But with solar, wind, and other clean energy solutions becoming more affordable and accessible every year, neither has the way forward. And with 195 countries signing the historic Paris Agreement to cut greenhouse gases the world is finally united in working to seize the promise of renewables and create a safe, sustainable, and prosperous future powered by clean energy.

What’s in the way? Powerful fossil fuel companies and their government allies spreading fear and misinformation.

Led by Vice President Gore and CEO Ken Berlin, we’re here to change that. We connect cutting-edge digital media, global organizing events, and peer-to-peer outreach to share the truth about climate change and the solutions in our hands today with people everywhere. And with our more than 10,000 Climate Reality Leader activists building support for pro-climate policies at every level, and millions joining us to accelerate the global transition to clean energy, we have the chance to stop climate change and together create a future we can be proud of. We’re not about to waste it.

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