Anyone with half a brain knows that the Sun is the key factor in warming the earth and that the Sun goes through cycles which effect Earth's warming and cooling.
But believe it or not, some who insist that man is to blame for global warming have actively tried to not only downplay this connection but to stop research on the subject and to block it's assimilation in the news media.
Since 1996 the "scientists" and their media and political allies have sought to bury and discredit research into the Sun's role in cloud formation and cooling. With billions of research dollars, not to mention all the "green" investments held by wealthy environmental activists it was essential to block any credible explanation that would counter the idea that man is to blame for global warming.
Here's an excerpt of the story from Lawrence Solomon writing at the Financial Post:
CERN scientists from 17 European and American institutes have done what global warming doomsayers said could never be done — demonstrate that cosmic rays promote the formation of molecules that in Earth’s atmosphere can grow and seed clouds, the cloudier and thus cooler it will be. Because the sun’s magnetic field controls how many cosmic rays reach Earth’s atmosphere (the stronger the sun’s magnetic field, the more it shields Earth from incoming cosmic rays from space), the sun determines the temperature on Earth.Stories like this which highlight the corruption that exists within the scientific and political communities that support the failed theory of man-made global warming are becoming ever so common. Still, try as hard as they do, these corruptocrats will never be able to block the truth forever. More and more studies (like a recent one where NASA satellite data shows little to no greenhouse effect) are making it through the firewall of alarmist thuggery.
The hypothesis that cosmic rays and the sun hold the key to the global warming debate has been Enemy No. 1 to the global warming establishment ever since it was first proposed by two scientists from the Danish Space Research Institute, at a 1996 scientific conference in the U.K. Within one day, the chairman of the Intergovernmental Panel on Climate Change, Bert Bolin, denounced the theory, saying, “I find the move from this pair scientifically extremely naive and irresponsible.” He then set about discrediting the theory, any journalist that gave the theory credence, and most of all the Danes presenting the theory — they soon found themselves vilified, marginalized and starved of funding, despite their impeccable scientific credentials.
“The theory will probably be able to account for somewhere between a half and the whole of the increase in the Earth’s temperature that we have seen in the last century,” Mr. Kirkby told the scientific press in 1998, explaining that global warming may be part of a natural cycle in the Earth’s temperature.
The global warming establishment sprang into action, pressured the Western governments that control CERN, and almost immediately succeeded in suspending CLOUD. It took Mr. Kirkby almost a decade of negotiation with his superiors, and who knows how many compromises and unspoken commitments, to convince the CERN bureaucracy to allow the project to proceed. And years more to create the cloud chamber and convincingly validate the Danes’ groundbreaking theory.
Still, with all the money to be made (how did Al Gore get so rich?) by scaring the public and causing their energy costs to skyrocket don't bet that the global warming alarmists are going to admit defeat any time soon!