It is so surprising to me how many people are not talking about how much greenhouse gases from cattle contributes to global warming, not to mention the pollution on land:

The study found that global warming since 1985 has been caused neither by an increase in solar radiation nor by a decrease in the flux of galactic cosmic rays. Some researchers had also suggested that the latter might influence global warming because the rays trigger cloud formation. I am find a blog which give some useful information on Global Warming.