Joe Biden famously declared that he wanted the US to be zero emissions by 2050. According to an AI Overview, zero emissions means a process or vehicle produces no waste products or pollutants, such as no tailpipe emissions from a car. The more conservative “net-zero emissions" means all human-caused greenhouse gas emissions are balanced by removing an equivalent amount from the atmosphere through methods like reforestation or carbon capture technology. The Guardian colorfully describes what an America that achieves this goal could…