I don’t really see any evidence for rising sea levels. But, I think it is true that we should not pollute earth. But that is not about population growth really, it is about that people should understand how to live well, Even if the population would be much less, as some people try to make happen, pollution could be problem, if people don’t understand how to live well.
I think it is always possible to live in balance with nature, even with greater population.
If you don't see the problem you havent been looking. Where are you getting your information? It's hard to conceive that anyone not dwelling in a straw hut could not be aware of the mounting evidence.I don’t believe in “manmade global warming”. However, it is possible that climate has change the whole time earth has existed. I believe it will continue to change, even if humans would not exist. People can’t stop change. But people could learn to live in a way that would be more sustainable. I have actually planned how that could easily work, without taking freedom from people, but it needs some finishing before I can reveal it in larger way.
What magazines and papers do you read? What news do you listen to?
We're depleting resources faster than they can be replaced: Topsoil depth, aquifer depth, forests, sealife, &c. "Living well" is good, but no-one has no ecological footprint, no matter how green his lifestyle.
What happened to the megafauna during the pleistocene, when there were only a few hundred thousand humans on the entire planet? What happened to the western European forests during the middle ages, or the eastern American in the 1800s? Why are the only cedars left in Lebanon on its flags? How can we feed 7B people without extensive land usage and resource depletion? Soylent green?
Even sparse populations, living simply, can have major impact. Biodiversity needs room and migration corridors. If a keystone species needs a territory of 100 square miles to survive, and the health of the region requires a large population of them, what's going to happen when there are no places more than ten miles apart without disruptive human incursions?