Solar Power It's time to stop beating around the bush. Global warming, acid rain, and pollution are and will continue to be major problems. Solutions must begin to be implemented to address these dire problems of the biosphere. We, the human race, must take action soon or we may not be able to take any action at all. In fact, we may not even be here to take any action. Them's the facts folks. It's up to us to act on them. So you ask "What can be done?" Its really simple. Begin immediately to replace all fossil and nuclear power plants with photovoltaics, using hydrogen, hydrides, or hydrogen fuel cells as storage media. Replace gasoline and other fossil fuels with these same hydrogen agents. The only argument against these measures is cost. Costs can be reduced greatly by using energy efficient appliances, especially lighting, refrigeration, and electronics. Conservation can also reduce costs. Besides, there is no choice. What's the earth to you? Do it now! (The present crisis in the Middle East brings this all home now. Oil will not last forever. It is better to replace it now, than to wait until it is all gone.)