The Pope only spoke out because too many of the far religious right keep misquoting from the Bible that God gave Man the Earth and that God will save Man from any issues. They utterly miss the point that we inherited the Earth, and we are responsible for it.
That said ... between a lot of "doomsday" predictions and the "this is nominal," there is actual truth. Remember, many scientists also predicted "Global Cooling" in the '70s due to the combination of the cool cycle of North Atlantic Oscillation (NAO) combined with Particulate Matter from Sulfides, Nitrates, etc... which are a Global Cooling factor (reflects sunlight).
Which means when you have a scientific illiterate "intellectual," like the President, he says scientifically stupid things like about his daughter's allergies. E.g., blaming Global Warming on increasing Particulate Matter from the resulting forest fires, forgetting the EPA has constantly tracked the reduction in Particulate Matter since the '80s, and any Particulate Matter from fires would actually work against Global Warming.
I.e., drought and forest fires, resulting in Particulate Matter that increases Global Cooling, are actually Nature's own defense against Global Warming. It's because we have greatly reduced Particulate Matter in the last 30+ years, reducing allergens, that we have further increased the factors of Global Warming.
Now I'm not calling for increased Particulate Matter, no, that would be irresponsible. But it does show how ignorant the President is ... that his daughter's allergies are less of an issue than just 1 generation back, because we reduced Particulate Matter, which has only increased the rate of Global Warming.