I feel that global warming exists in the summer and even in winter it's getting warmer. Partly it depends on the solar activity and partly on human activity on the planet.
Dude, solar anomaly is a very slow process which can stretch for millions of years. You can't blame solar activity for short-term temperature rise, that too around the globe. This is one of the most ridiculous arguments I have read in this thread. IMO, 99% of the global warming (if not 100%) is caused solely as a result of human activity.