> how about some technology innovation instead of governance and taxation

The history of solar, EVs, batteries etc. show these work hand in hand.

Why invent a way to capture methane from slurry, or form a business to sell that idea to farmers if they're allowed to pollute for free?

if methane were valuable, it would already exist, and there are a number of techs in development now: https://horsesport.com/magazine/farm-management/heating-with...

if you have a problem with farmers, maybe you should just eat less?