It's the Sun!

No it isn't and Barton Paul Levenson explains why global warming is not caused by the Sun.

[[The sun is the culprit!]]

Total Solar Irradiance hasn't gone up significantly in 50 years. Global warming has turned up sharply in the last 30.

More sunlight would heat the stratosphere. The stratosphere is cooling. Modelers predicted it would if greenhouse gases increased.

More sunlight would heat the equator more than the poles (Lambert's cosine law). Instead we see "polar amplification," also predicted by the modelers. The poles are heating faster than the equator.