evidence: Scientists say climate change denial is now more likely to focus on the causes and effects of warming, or how to tackle it, than to outright deny it exists. We've looked at some of the most viral claims of the past year, and what the evidence really says. [...] Studies suggest the Sun may well go through a weaker phase sometime this century, but that this would lead, at most, to a temporary 0.1 - 0.2C cooling of the planet.