Never cross a river 4-ft deep on average. That 1ºC over normal is the yearly average global temperature. It doesn't increase evenly over the globe (in the arct

Never cross a river 4-ft deep on average. That 1ºC over normal is the yearly average global temperature. It doesn't increase evenly over the globe (in the arctic has been over 4ºC, a region where permafrost thawing and ice melting will worsen the problem) and is causing extreme weather events all around the world. Temperature don't uniformly rise by 1ºC evenly all days, for all regions, nice and slowly, but you have weeks with over 40ºC or extreme sub zero temperatures, droughts and floods caused by big storms, hurricanes and so on. And with more global average temperature you will have even more extreme weather. With wet bulb temperatures you can have a lot of deaths of people that won't see how "the average" will eventually bring colder days. And it is not a sustained speed change. Positive feedback loops are triggered, adding emissions, reducing Earth's albedo, causing forest fires and so on that will speed up things even if we stop doing emissions. And remember that are not emissions the ones that are directly rising temperature, but decades of excess of greenhouse gases that keep more heat than what we emit. And that we only stop worsening things by the time we manage to reduce what is in the atmosphere (not just what we keep adding). If somewhat things get rough and we want to drop temperature urgently, dropping by then emissions won't do the trick, we need to capture a century of emitted carbon plus what is being emitted by feedback loops.