We are working in serial. There is limited public attention, government budget and political capital available to regulate these industries. This creates significant opportunity cost.

In order to actually change the world, we need to spend all our efforts stopping the biggest polluters such as chinese industry and fossil fuels. Worrying about smaller problems such as methane or cryptocurrency is a waste of time at best and a malicious distraction at worst.

The public's attention and cognitive powers are finite, so it is best to not confuse the issues. The front and center message about climate change to the public and to regulatory agencies needs to be "cars".

> The public's attention and cognitive powers are finite

The amount of money they, and the state, can spend, pursuing these things, is also finite.