In which year will the monthly mean average CO2-value surpass 400 ppm - at least in one month? | Knew The News - News Prediction Game

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In which year will the monthly mean average CO2-value surpass 400 ppm - at least in one month?

In which year will the monthly mean average CO2-value surpass 400 ppm - at least in one month?

In which year will the monthly mean average CO2-value surpass 400 ppm - at least in one month?

In which year will the monthly mean average CO2-value surpass 400 ppm - at least in one month?

In which year will the monthly mean average CO2-value surpass 400 ppm - at least in one month?

Asked by:

Super User

Josef Biesenberger in Science » Environment
Currently Open, suspends 11/30/2015 19:10 (in 11/30/2015 19:10)

during 2011, 2012

1.0% →

during 2013

1.0% →

during 2014

91.8% →

during 2015

4.9% →

later or never

1.4% →

Background

chart with monthly data: http://www.esrl.noaa.gov/gmd/ccgg/trends/#global

weekly data: ftp://ftp.cmdl.noaa.gov/ccg/co2/trends/co2_weekly_mlo.txt
monthly data: ftp://ftp.cmdl.noaa.gov/ccg/co2/trends/co2_mm_mlo.txt

Find more questions: CO2, ppm, carbon dioxide, emissions, greenhouse, environment, warming

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User comments

04/06/2013 21:13

Super User

The inevitable 2012 title was ‘Human population reaches 7 billion‘, surpassing anything anyone could have imagined 100 years ago. Now, we’re approaching a very worrying milestone – CO2 levels in the air will reach 400 ppm (parts per million), for the first time in human existence.

http://www.zmescience.com/ecology/climate/co2-levels-400-ppm-12032013/

05/15/2012 20:41

REACHED 397ppm May 2012- 75% chance it will reach 400ppm in a year.

Blogs

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Knew The News | Blog: Top Featured Markets December 2011, published by kruijs

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