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It's not only giving money to it, everybody can help out by using climate friendly transport, grab a bike or walk to places not too far away (driving to your school a kilometre away is from lazyness. I try to be as friendly to the climate as possible; I bike anywhere close (anything closer than 10km pretty much) instead of asking my parents to drive me there. (I am driven with them, but that's only when we're going for a trip or shopping mostly) But I really don't do it to be climate friendly, it's more because of me liking to go places and bike around
That's quite naive. Individuals aren't the biggest issue, it's companies. Even if it was just people, companies wouldn't be touched because of the governments we are (mostly) all in. Capitalist governments are biased towards the right and will give preference to companies over people (which is why when a company is charged of manslaughter or negligence then they are merely fined). All this turning off electricity stuff won't help because it requires involvement from power plants themselves. Power plants will still run at full power, I suppose they probably have giant capacitors to store excess power but they're not going to turn them off for two minutes to save the planet. We can't really do anything to stop global warming until the people who are genuinely responsible start helping to fix it.
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Where money can help out is the part of making climate friendly cars, planes, boats etc. And of course climate friendly fuel. I don't know much about that but I think there is some climate friendly fuel, right?
No fuel is climate friendly. It's like people saying how hydrogen power is the way forward, the hydrogen and oxygen have to be separated from the water, using power. The power comes from power plants, merely putting a strain on them rather than actually lowering pollution. Admittedly, modern power plants are far more efficient than cars (especially gas power plants, they get about 50% efficiency, a car is about 20% efficient) but it won't solve the problems of running out of oil (and therefore petrol and plastic) and won't ultimately stop global warming.
What I'm trying to say, really, is that it's a lost cause. Unless be pour trillions into stopping it, global warming WILL happen. Nobody will support that much money to solve a long-term problem because companies and governments plan for short/mid-term. When it does happen, perhaps it will just kill off a good portion of the population and fix the problem itself. Nature is good at restoring order, even after we damage it severely.