There is a recent short-time period in which average global temperatures have risen. However, if one considers a time period of hundreds of years rather than a dozen, then there is no overall increase.
The term "global warming" in common parlance has come to mean "human caused global warming". In reality, humans have very very little effect on global temperatures, but anti-industrial pseudo-environmentalists have successfully promoted their lies.
Why is the amount of solar radiation reaching the earth’s surface increasing? The authors of the Science papers don’t have a firm idea, but most tend to think that it has to do with the atmosphere becoming generally cleaner as a result of less pollution being emitted into it rather than actual changes in the solar output.
What a hoot, the heating of our earth is actually OUR FAULT, due to decreasing pollution!