Tag Archives: CO2

Threefold increase of dust led to -40 ppm CO2 Antarctic iron fertilisation during Pleistocene

An international team of researchers today in Nature explain the importance of dust storms for climate variability, not just for the radiative balance, but also for the Earth’s carbon cycle. For geoengineering minds: iron fertilisation at least seems to have … Continue reading →

Hydrogen fuel produced from sunlight and safely stored

Hydrogen has long been commended as a clean and efficient alternative to gasoline, but so far it hasn’t really been able to live up to expectations. Mostly because it has to be derived from non-renewable sources like coal and natural … Continue reading →

Climate change may release around 3 percent of 2,000+ Gt instable soil carbon from Arctic tundra over this century – as CO2 and methane

Here´s why finding out the Gulfstream could be quite stable wouldn´t necessarily be such good news: under continued warming, the positive feedback of increased tundra peat soil CO2 and methane emissions far outweighs the negative feedback of ‘taiga creep’ and … Continue reading →

Tropical forest CO2 fertilisation: self-mitigation of emissions possibly around 15 percent

In which case increased tropical forest density would sort of average out emissions of tropical deforestation. [Is it just us or do you share the feeling something is uncomfortably unsustainable about that comparison?] A couple of days ago we reported … Continue reading →

NASA climate model study: Arctic melting linear with temperature

Here’s another climate model study that challenges the Arctic tipping point idea. Arctic melting is still sensitive to temperature rise though and any further increase in atmospheric CO2 will keep translating to further ice loss. According to the new NASA … Continue reading →

Permian-Triassic mass extinction: 11,000 Gt CO2 worth of climate change led to microbial plagues that killed the world’s forests

New research shows an example of a missing link between climatic disruptions and biodiversity decline: killer microbes.

The wildfire climate feedback, tundra´s case: megatonnes of extra CO2

Globally 2007 was one of the hottest years on record. In the Arctic it led to the thus far smallest sea ice extent. But that’s not the only thing unprecedented that happened in the far north. For the first time … Continue reading →