I agree the problem is bigger, but non-industrial transport is about 15% of CO2 emissions in the US. It's nontrivial. There is also the grid storage business.
Anyway, I don't care to make this about Tesla/TSLA but the stock movement has made me wonder if there was material news I was unaware of. That could be a breakthrough in efficiency or that is good for Tesla, or it could be much worse than expected climate forecasts that might direct very large spending their way (among other things).
That's only true in countries that did absolutely nothing. The reality is that when you stop burning coal then unchanged emission sources like cars grow in relative terms and become more important.
That's a triumph of hope over experience if ever I heard one. We need an urgent intervention right now. The chances of it happening? Pretty damn close to nil, I'd say.
There is no Planet B. The energy expenditure required to 1) terraform Mars and make its environment habitable to humans, and 2) get enough people there... is several orders of magnitude harder than fixing our problems here on Earth.
Even if that plan was viable: we simply don't have the time to do so before we kill ourselves off.
It's not like TESLA has some magic pixie dust that can save the world tomorrow. Environmental impact from current ICE cars is fairly small compared to the pollution caused by mass manufacturing with no recycling, heavy industry, coal burning, shipping, etc. People buying more Teslas are a drop in the ocean when it comes to saving the environment, like putting a band aid on a slit artery.
People buy TSLA because it makes them money and buy Teslas because they're nice cars. If they really wanted to save the environment, they would ride a bike.