An unprecedented leap in C02 levels over the past two years is leading some scientists to wonder if the Earth's atmosphere is losing its ability to absorb greenhouse gases.
The Mauna Loa Observatory in Hawaii has been keeping continuous C02 readings for almost 50 years. Recorded increases in CO2 averaged 1.5 parts per million (ppm) a year in recent decades because of the amount of oil, coal and gas burnt; now however, it has jumped to more than 2 ppm in 2002 and 2003. As one advisor to Britain's former environment minister put it, "We're watching the clock and the clock is beginning to tick faster, like it seems to before a bomb goes off."
Thanks to Michael Dudley
FULL STORY: Climate fear as carbon levels soar

Rethinking Redlining
For decades we have blamed 100-year-old maps for the patterns of spatial racial inequity that persist in American cities today. An esteemed researcher says: we’ve got it all wrong.

Planetizen Federal Action Tracker
A weekly monitor of how Trump’s orders and actions are impacting planners and planning in America.

California High-Speed Rail's Plan to Right Itself
The railroad's new CEO thinks he can get the project back on track. The stars will need to align this summer.

US Senate Reverses California EV Mandate
The state planned to phase out the sale of gas-powered cars by 2035, a goal some carmakers deemed impossible to meet.

Trump Cuts Decimate Mapping Agency
The National Geodetic Survey maintains and updates critical spatial reference systems used extensively in both the public and private sectors.

Washington Passes First US ‘Shared Streets’ Law
Cities will be allowed to lower speed limits to 10 miles per hour and prioritize pedestrians on certain streets.
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