Arctic ozone hole is larger than ever

Posted on October 3, 2011 by Jorn van Dooren

The Antarctic ozone hole was big news in the eighties. It was a clear sign of man’s detrimental influence on our planet. Now the ozone layer over the Arctic is so thin that for the first time it can be … Continue reading →

Today’s paradox: Indian monsoon may recover at price of climate change

Posted on October 3, 2011 by Rolf Schuttenhelm

Over the second half of the 20th century the monsoon rains in the Ganges Valley in north and northeast India decreased by 10 percent. Meanwhile monsoon rains in the south and the Indus Valley [remember 2010 Pakistan floods] increased. Burning … Continue reading →

Missing heat 2000-2009 indeed deeper in ocean, says NCAR model

Posted on September 20, 2011 by Rolf Schuttenhelm

As a regular of Bitsofscience.org you may recall a publication on ocean warming [between 2003-2010] in Geophysical Research Letters from last July. That one was little-noticed by the world’s media, but now its findings may receive more attention, as an … Continue reading →

Today’s paradox: coal is not worse for climate than natural gas

Posted on September 15, 2011 by Rolf Schuttenhelm

It´s basic chemistry: coal is mainly carbon, if you burn it you get lots of CO2. Natural gas is mostly methane, and that’s a different story. With methane just ’20 percent of the burned atoms’ are carbon, the rest is … Continue reading →

Arctic sea ice has reached new melting record – doesn’t NSIDC say

Posted on September 14, 2011 by Rolf Schuttenhelm

Today is September 14 2011, the day the Climate Reality Project makes a stand against the ‘new normal of climate denial.’ Over 24 times zones there will be 24 climate presentations in which public attention will be focused on the … Continue reading →

Clouds don’t cause climate change

Posted on September 8, 2011 by Jorn van Dooren

The mainstream and long-held view of clouds in relation to climate change is that clouds are acting as a feedback in response to temperature changes caused by human activity. Some sceptics however argue that it is the other way around … Continue reading →

Not all nitrogen for forest growth comes from air – trees can tap into bedrock too

Posted on September 7, 2011 by Rolf Schuttenhelm

And somehow “that stunning finding has the potential to change all projections related to climate change.” Wow. That’s dramatic.

Climatic CO2 benefits of fertiliser offset by increased N2O emissions

Posted on September 5, 2011 by Jorn van Dooren

Since the 1860’s nitrogen additions to the terrestrial biosphere have more than doubled, due to human activities. Since nitrogen is a key nutrient needed for plant growth and therefore used as a fertiliser, the additions have made a drastic increase … Continue reading →

Arctic closing in on 2007 melting record

Posted on September 2, 2011 by Rolf Schuttenhelm

It´s September and we have about two weeks to go till the annual Arctic sea ice minimum. As far as we can tell it´s going to be a close call – with a good chance that this year will beat … Continue reading →

Anti-soot policy can solve 15% climate change within decade

Posted on September 1, 2011 by Rolf Schuttenhelm

And that could be achieved in addition to climate mitigation through reduced emissions of greenhouse gases.

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