I hate this feeling of hopelessness regarding global warming. It feels like even if you were a billionaire/massive corp, at some point you would say "wow we should stop, or else there won't even be a world to spend this money in".
Nobody mentioned reducing pollution and greenhouse emission is the best way to help the situation so I will -- non-polluting alternatives to flying, eating meat, heating and cooling (I'm surprised how many people heat their homes in the winter so they can walk around in shorts), packaged food. Having fewer children.
As a community, HN seems to think nuclear energy is easy while carpooling or flying less are misguided wastes of effort.
The oceans are by far the most important eco system on the planet, they have tremendous capacity for healing and regeneration but once that gets pushed too far there may be no way back. And without the oceans alive the world will be hungry.
There are many bad things the Trump administration might be remembered for domestically but internationally the most visible decision was the withdrawal from the climate change accords and it may eventually make the USA a pariah state no matter what military might they have.
How many nuclear powered vessels would it take to generate and pump in sufficient oxygen?
An important topic, but can we at least have some mention of what we can do to improve oxygen levels in the oceans (aside from reducing the level of pollution, which is the obvious but slowest to implement solution). Surely there's something that could be done to tackle this in a more immediate manner? Are there plants within the ocean ecosystem that convert carbon dioxide to oxygen?
This could very well be humanity’s Great Filter.
Would it help to pump a lot of air down tubes with additonal LEDs to bring light- and thus generate a algea bloom sending the C02 back to where it came?