Or we invest heavily in renewables and/or nuclear, insulate our homes and replace ICE vehicles with public transport, bikes, and electric cars and get 80% of the way to carbon neutrality with negligible changes to our lifestyle.
While I have personally found not eating meat to be an easy lifestyle change, I'm sure many people will disagree.
This is a good reduction, keep up the good work!
By the way - this also means that you can eat all the meat you actually want. Cutting back on the meat you eat on auto-pilot will go a long way already.
Edit: inspired by a reply, I think that a rule like
Don't eat meat, except if you really want to
might be even more promising. It takes away the cognitive load of the decisions whether to eat meat or not while being an unfailable method because it includes exceptions to the rule by itself. You're not out just because you really wanted that burger or a steak at the barbecue.
The reduction of choices in restaurants, malls and grocery stores is actually liberating in a way. You should try going meat-free for a month, just for seeing how it makes things a lot easier.
The next step would be to go vegan, because the dairy industry is no better than the meat industry, but I haven't done this yet. This actually increases the mental load somewhat again, because you then have to pay a lot more attention on whether something has dairy in it or not (or is made with the help of animal products such as juice).
The important idea was to have the 'failure' case being somewhat acceptable. It's not an either-or situation where you either are a vegetarian or not.
It's meant to be a method to deal with weakness. Consuming a fraction of the meat than before is better than being a vegetarian for maybe five weeks before everything falls apart.
Combining both approaches might even be the best way: Don't eat meat, except if you really want to sounds simple enough.
Changing the way we move is good, but there is still the model of consumption that needs to be changed : eating bananas that crossed oceans by boat, plane traffic and so on.
Yeah bikes are good, but we still need to consume less. Much less.
What you call 80% carbon neutrality is from a perspective of someone living in an desindustrialized country. But you still expect to have smartphones or computers produced at the other end of the world.