Climate change is now a popular topic. World leaders are discussing it this week at the G8 summit in Prague. And just last week in San Jose, California, high tech industry leaders gathered to give solar energy a boost. The global warming issue definitely is hot. Al Gore’s documentary, “An Inconvenient Truth”, helped make human induced climate change a glitzy issue. The film won an Academy award and has gotten a lot of attention. But is climate change now good business? The St. Francis of Assisi School in London is the first of 100 schools across Britain that will be fitted with solar technology. And in Palo Alto, California, the sun powers all the townhouses in a development that opened just last month. Stephanie Pruitt, of Warmington Homes, says, “It will create significant cost savings in electricity bills for homeowners. And we do see this as the wave of the future.” Nearby, the Silicon Valley area hopes to take the lead in the solar power industry. Solar power is a billion global industry. Not huge, but the Solar Energy Industries Association in the US says the business is expanding by 40 percent each year. Businessman Alan Gartner says it is striving to meet the needs of the market. “I do not think I would be here unless I thought our company was wildly capable of morphing and changing and meeting whatever the needs of the energy market are.” Industry leaders say they still need assistance from national governments. In the US, the push is to extend tax credits …