Cosmic rays still not driving global warming. Via Climate Ark:
In research published in Geophysical Research Letters, and highlighted in the May 1 edition of Science, Adams and Pierce report the first atmospheric simulations of changes in atmospheric ions and particle formation resulting from variations in the sun and cosmic rays. They find that changes in the concentration of particles that affect clouds are 100 times too small to affect the climate.
I’ve not read the GRL paper, but here’s the blurb in Science. Previous posts on the cosmic ray myth here and here.
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