No dumb bullshit? Deal.
Here's a link that will start you in the right direction. I'll break it down for you if you don't like wading through peer-reviewed journals. The sun is in a period of decreasing output currently, and as such does not explain our rising global temperatures. Increasing greenhouse gasses meanwhile results in warming of the troposphere, but cooling of the stratosphere, which is what is being observed. If the sun was responsible for observed warming, warming of the troposphere at the surface and warming at the top of the stratosphere would both be expected. While solar output can have an effect on global temperatures, increased solar activity has not correlated to higher temperatures historically. What does line up with periods of high temperatures are high levels of CO2 and other greenhouse gasses. These correlations can be observed both on the "micro" level in ice cores of the last 800,000 years, and on the "macro" level in benthic cores and sedimentary rocks going back hundreds of millions of years.