Er... I got an electric car does that count? Based on $ keeping the old car is cheaper. Also divestment, purchase choices, charity donations, solar install.
No, it doesn't. Your contribution is statistically insignificant. It was purely a symbolic gesture.
Buying electric cars, installing solar, and switching to heat pumps are one of the few things you can materially do to screw the powers that be. The the other one is limiting your family size.