Progressives of various stripes are attracted these days to several political ideas that must be handled with care or they could come back to haunt us. Considering these ideas points to the need for a new agenda for Americans concerned about climate and the environment. "Affordability" is a huge, legitimate concern for Americans and those who purport to represent us politically. Many progressives are using "affordability" as the rallying cry and point to high prices and inflation. As the success of Zohran Mamdani in NYC shows, it is a powerful political issue, and rightly so. As I write, Trump just confirmed all this by calling affordability a hoax concocted by Democrats.