Question Details

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 UserJosef Biesenberger in Science » Environment
Settled on 04/22/2014 15:26 Settled by Super Userkruijs
Winning option:during 2014 There is typically seasonal fluctuation in the parts per million (ppm) of carbon dioxide, according to scientists who track the levels. That explains why, after hitting 400 for the first time in recorded history last May, the levels declined soon after. But they hit 400 ppm again in mid-March, and have stayed above that level for all of April.

http://www.huffingtonpost.com/2014/04/22/carbon-dioxide-climate-change_n_5187844.html

Predictions
during 2011, 2012
0.0% →
during 2013
1.0% →
during 2014
97.0% →
during 2015
1.0% →
later or never
1.0% →

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 similar: CO2, ppm, carbon dioxide, emissions, greenhouse, environment, warming

Comments

Comment on this question:

Sign in to comment

   Super Userkruijs

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/

   Peter Mizla

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

Blogs

Blogs mentioning a question:

Integrate this question on your website or blog Get Widget!

Advertisement

What's This!?

  • This is a user submitted question. Players make predictions on what they expect to be the actual outcome.

    more...

  • Register for free and get 1,000 KtN$
    in virtual cash to start predicting!

  • Limited offer: Sign up today and recieve double cash!