I didn't mean just the climate change issues. I meant literally any and all planetary problems. In fact given that our radio transmissions already have made it to and beyond alot of the closest stars by now, the lack of any response or aliens coming to visit Earth, indicates that likely no intelligent species within 100 light years of Earth has developed interstellar travel, otherwise where are they??
Global warming - an urgent problem requiring radical solution (no politics or religion)
Our transmissions would be absurdly weak at that distance. We could not detect such transmissions from Alpha Centauri.
Alright hopefully people won't laugh at this suggestion, but it may be seriously one of humanities only hope at this point.
An Earth Distress Call beamed into space.
We simply do not have the medical or environmental tech to deal with all these problems on the planet at once. We need assistance from more advanced alien species out there if they exist. We should try to build the most powerful SETI radio transmitter known to man, launch it into high orbit, and have it continuously send out a compressed signal containing literally all the info about our planet and the societal distress plaguing it. We should send out all the visual and audio transmissions needed that would max out the likelihood that another intelligent civilization could decrypt and decipher the purpose of us sending all this. It could be a massive solar + nuclear powered Hubble style transceiver designed to operate continuously for years transmitting signals powerful enough to still be readable at the closest 100 star systems to Earth. We should basically send the entire Pentagon database, library of congress, all the detailed info about our DNA, computer systems, and exact detailed planetary data out into space to hopefully give all the aliens the info they need to come enhance our planet. It's time for humans leave the Earth in the hands of more civilized and accomplished species in the cosmos. We need to start making some noise in our galactic neighborhood, and project the desperate pleas of humanity into deep space so hopefully our interstellar neighbors will respond and help us.
You need to watch The Three Body Problem (it's on Netflix).
Our transmissions would be absurdly weak at that distance. We could not detect such transmissions from Alpha Centauri.
If they have more advanced tech they might still be able to detect it. They could also just be flying around with half a light year of the solar system and pick them up in our spacecraft. Basically we need to start making noise in space and catch some attention, as that's the only likely way Earth is gonna be saved. Stop all the dumb moon missions and put 100% of the resources and effort into making more powerful interstellar communication systems.
We absolutely have the technology, to have 100% renewable, environmentally benign, electricity generation.