Even if there is a 90% chance we are causing global warming, as the UN group of over 2500 leading scientists believe, I am not certain that it should be the most pressing issue we need to concern ourselves with. Instead, why don’t we concern ourselves with the poisons that are entering our bodies via polluted rivers, polluted air, and the use of thousands and thousands of household and industrial chemicals that are approved for use without any long term studies as to their impact on human health. My brother in law has a PHd in chemistry and I am amazed at the examples he has cited for me of common household sprays and insect repellants that have chemicals, that once in the body, never leave and actually cause internal damage to the organs of small mammals. National Geographic just did a piece on this very same issue.
BTW, this site is about housing, but there is the off topic area where things like this are posted all the time so don’t feel like you can’t bring this stuff up!