Today is Earth Day, so what should we do? Back in the 1970s, when Earth Day began, the answer was fairly simple: plant a tree, raise consciousness, promote cleaner air and water. It was a ritual of purification and celebration, a day for us to show how concerned we were about the deterioration of our environment, and our (perhaps naïve) determination to put things right. Now it’s more daunting. Global warming is a mega problem. A few hybrids and windmills won’t solve it, let alone devious evasions like carbon credits. We need to change completely how we live – no more long distance flying, no more pointless short car trips, no more thermostats set to our perfect comfort zone 365 days a year. The penalty for failing to change these habits, so we’re told, will be a new and more comprehensive version of Noah’s flood, with Long Island one of the first places to go under. This is definitely something worth worrying about. But are we really going to change how we live? I could give up my car