feeling overwhelmed, rtaylortitle? I never would have guessed. You step right up with a set of denier talking points: 1) It's the Sun. 2) The climate is always changing. 3) Other planets in our solar system are warming. All of these have long ago been debunked. But let me run through them again. 1. Throughout prehistory, the sun has been the trigger of warming -- both because it's very slowly getting brighter, and because Earth's motions put it closer to the sun, or tilt the northern hemisphere (which has most of the land) more toward the direct rays of sunlight, at certain times. However, warming due to the Sun has been aided and abetted by the increase of water vapor and carbon dioxide. This is why the ice cores show CO2 increases lagging temperature increases. Today, it's the reverse. We measure CO2 increasing along with temperature, while sunlight intensity has been constant or slightly down since 1978 when we started to measure it constantly with satellites. Also, we know we are producing the extra CO2 because carbon isotope ratios tell us it's old CO2 from underground. 2. Of course climate is always changing. The world has been warmer than it is now or will be later this century -- but never when it held over 6 billion humans dependent on fragile infrastructure systems. I don't know your situation, but it's possible you live in a house that burned down and has been rebuilt. If that's the case, do you forego