JR, Committing to net zero by any year is not deadly; it is constructive, commencement of taking steps to lessen our carbon footprints and slow the climate crisis. Never before have so many people cared about the Earth. At Glasgow COP people exchanged best practices and gained new perspectives on how to overcome obstacles to keep the temperature rise to 1.5 degrees C. They only got to 1.8 and so the work continues to identify further changes. We must take a holistic approaches, and not as you suggest winnow it down to the worse actor, fossil fuels. Trees capture and store carbon for hundreds of years. Grasslands including lawns without quick-release fertilizer store carbon for thousands of years. A New England natural lawn cut with clover cut every two weeks, not weekly, will have pollinators (93 sps of bees). Natural lawns can build an inch of soil in a year. For every ton of liquid carbon root exudate, lawn grass pulls 4 tons of carbon dioxide. Replace impervious surfaces with plants. It all adds up to less carbon pollution when we conserve, reuse, reduce waste, reduce energy use, and restore damaged habitats.