Apple's April 20 event COVID vaccines and blood clots DogeCoin Google Doodle honors Gutenberg Stimulus check status and plus-up money Child tax credit will be monthly

Green news harvest: Solar thermal returns to Calif., Seattle algae

Duke Energy scales back solar plan, Solydra scores another big customer for rooftop solar, energy and water's close linkage, an algae biofuels contest, smartening the grid, and more.