If Burundi goes 0 emissions tomorrow it hardly matters

If California does, it matters : - It shows it is possible, and increase political pressures on others - It create a pressure and market (California is big enough and Burundi or Alaska are not) for new solutions (technology based or not) that can be implemented elsewhere - It help decreasing the cost of many existing solutions, and everybody will benefits from it - It is possible to set up carbon tax at the border, increasing the incentive to follow California path