Not mentioned is that it is also critical to reduce our meat consumption, for this and numerous other reasons. I posted awhile back about eating sprouted legumes; that's still a staple of my diet, and now that summer's here I eat a lot of greens from my yard, including dandelion and oxeye daisy, otherwise known as weeds here in the USA. I still eat meat as a rare, luxurious treat; one need not give up meat to reduce environmental impact. Nutritional yeast provides plenty B12 and other nutrients. One big "everything" salad a day, plus my child's leftovers throughout the day, is enough (I'm a male in my 40s averaging about 7k steps a day plus lifting 40+ pounds many times throughout the day; not strenuous activity, but consistent).
Humans and our livestock dominate the planet. I'm not proud of that. I'm not confident that our respective elected officials can enact toothy regulations quickly enough to put enough of a lid on our resource churn, so I appeal to you, dear reader, to find a way to live a rich and interesting life on a reasonable carbon footprint (what that is is up for argument, but certainly less than the US average), and to convince your family, friends, and neighbors to do the same.