Tag Archives: Carbon Levels

Carbon dioxide levels reach global milestone

Worldwide levels of carbon dioxide — the gas scientists say is most responsible for global warming — reached a significant milestone for the month of March, the National Oceanic and Atmospheric Administration said Wednesday.

The global monthly average for carbon dioxide hit 400.83 parts per million in March, the first time the average surpassed 400 ppm for an entire month since such measurements began in the late 1950s, NOAA said.

The last time carbon dioxide reached 400 ppm was millions of years ago, according to the journal Nature Geoscience. A 2009 report in the journal found evidence of CO2 levels of 365 ppm to 415 ppm roughly 4.5 million years ago.

Read full article in USA Today

 

Reality Check: Are California’s Carbon Emissions Goals Attainable?

By Sam Brock & Rachel Witte, NBC Bay Area

California Governor Jerry Brown announced last week a new plan for reducing the state’s greenhouse gas emissions. The executive order calls on the Golden State to decrease carbon emission rates by 40 percent below 1990 levels by the year 2030.

The proposal will serve as an interim goal established by the governor as the state works toward reaching its target of reducing emissions by 80 percent by 2050. That’s the more long term plan laid out in Senate Bill 32, legislation introduced by Sen. Fran Pavley (D-Agoura Hills) at the end of last year.

Has the governor set the bar too high, or is this simply an expression of his faith in California’s climate change policy?

Read full article from NBC Bay Area