I strongly agree with your first tip. Geo Engineering must be stopped.
Think about it – putting tons of poisonous substances like, aluminum oxide, barium and strontium can be very dangerous to our health and is a threat to human existence.
These dangerous particles, come down on us in the form of ‘acid rain’ and produce toxic water, polluted lungs and cause so many damages. We need to stop Geo Engineering.
Yeah, that is sort of the one major one we can't do anything about. It effects everyone and it must be stopped or the entire planet is doomed.