Still recycling long-debunked arguments from 25 years ago, I see. You lot desperately need some new material.

The early 1900s warming wasn't caused by multiple factors. Solar output increased, volcanoes were relatively quiet for a while, and natural variability in the oceans all played a part. As even deniers will selectively point out, climate is multifactorial.

But the situation changes once you get to the late 20th century. From the 1970s onward, solar activity isn't increasing. It's flat. Yet temperatures keep climbing. That's where the “iT's ThE sUn” explanation collapses.

When scientists test this properly, they don't just eyeball graphs. They run simulations with different drivers switched on and off. If you exclude greenhouse gases, the late-century warming largely disappears in those simulations. Put them back in, and the models produce the upward trend we actually observed.

You don't have to think climate models are perfect to see the pattern. Solar variability can help explain some earlier fluctuations. It does not account for the sustained warming over the past five decades. The timing simply doesn't line up.

Stick to mechanical engineering, Tom. You make a terrible scientist.

On and on the climate change rubbish goes. It doesn't really matter who says what anymore. The lunatics are still in charge, thanks to silly voters, and life just gets harder and harder for said silly voters. Silly voters get the governments they deserve, along with the ever-increasing costs caused by lies that climate change is caused by the silly voters' use of cheap, reliable fossil fuels.