Most leading climate experts don’t agree with Henrik Svensmark, the 49-year-old director of the Center for Sun-Climate Research at the Danish National Space Center in Copenhagen. In fact, he has taken a lot of blows for proposing that solar activity and cosmic rays are instrumental in determining the warming (and cooling) of Earth. His studies show that cosmic rays trigger cloud formation, suggesting that a high level of solar activity—which suppresses the flow of cosmic rays striking the atmosphere—could result in fewer clouds and a warmer planet.
While I am in no doubt that global warming is a very real phenomenon, and that its dramatic shift over the last 20-30 years is having major impact on the world around us and will continue to do so with quantum changes in how we live and survive over the coming decade, I think the true underlying nature of the problem needs a little more investigation.
The reason why temperatures shot up during the PETM are unclear; but carbon dioxide concentrations in the atmosphere appear to have been extremely high, about a thousand times higher than currently. And then today, we get another news story that US scientists think that a good way to deal with the build up of CO2 is to capture it any bury it at the bottom of the ocean. Surely this is asking for trouble?