California ecology

San Diego named greenest city in America by WalletHub

A study released this month ranked San Diego as the greenest city in America, thanks to copious amounts of renewable energy and an overall healthful environment. San Diego was followed by Portland and Honolulu in the ranking by Washington, DC-based WalletHub, a financial information website. The least green of the 100 largest cities in America were three in the Phoenix suburbs: Gilbert, Glendale and Mesa….