I've tried to simply use common sense in my own efforts which date to the mid 1980's when I became deeply involved in bioregionalism and the study of reinhabitory strategies. One of the first things I significantly limited was air travel. Then I moved to an area where car travel was limited. This is a huge problem for us in America, because our cities are basically built for cars, and it's very challenging to find decent employment where you can walk, bike or take public transportation to work.
We started composting, limiting meat consumption and other things. We moved to a much smaller home.
I'm not a fan of electric vehicles for many of the reasons already mentioned in this thread. The mining, but also the human cost. Much of the labor is supplied by poor workers and they're exposed to a number of harmful things in the production. Obviously, fossil fuel is a huge issue, but every can of coke and every pill we consume is dependent upon fossil fuels. It's not going away.
The answer to all of this, if it's an answer, is reduced use and scaling back population growth. The population is sustained by industrial agriculture (another huge problem), so as agriculture continues to experience the effects of climate change, the human population will inevitably decline. None of us want mass starvation and death, but nature bats last. We can either control it on our own, or Mother Nature will do it for us.
But having been involved in this area for nearly 40 years, I've largely given up hope. Addressing our ecological problems requires massive change in human behavior, and in the United States, this seems highly unlikely. Americans are all about individual freedom and the community comes second. It also will require us to address growth capitalism, a system that is by its very nature unsustainable. You can't have unlimited growth in a closed system. In biological terms, we call uncontrolled growth of cells a cancer. It's ultimately fatal.