Highlighted Article: Climate Change, due to Solar Variability or Greenhouse Gases?

By: Andy May

"It’s more likely mostly due to both, but that isn’t really the question. Virtually everyone accepts that climate changes and that CO2 and methane are greenhouse gases; and probably everyone remembers from grade school that the Sun is a variable star. The debate is over how much of recent global warming is due to the Sun, either its internal variability or changes in the Earth’s orbit, and how much is due to human greenhouse gas emissions, mostly from fossil fuels?"

Climate Change, due to Solar Variability or Greenhouse Gases? Part A

Climate Change, due to Solar Variability or Greenhouse Gases? Part B