The Second Version

26/08/11

The March of Knowledge

A new experiment at CERN on the role of cosmic rays in cloud formation demonstrates that... well, we don't know so much about cloud formation yet.

It is likely that cosmic rays play a bigger role that previously thought, and the current view that some trace gases (ammonia, sulphuric acid) alone account for all the condensation nuclei is wrong.

Problem - for some - is, cloud cover is very important for Earth's climate, and current models are based on those assumptions that now seem invalid in the light of these experimental results.

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