Mercury News: Setting up what is expected to be a multimillion-dollar political battle between oil companies and Silicon Valley tech leaders, opponents of California’s landmark global warming law turned in about 800,000 signatures Monday for a November ballot measure to suspend the law. Opponents of the law, known as AB 32, say it will cost California jobs during a bad economy by increasing the price for fuels such as gasoline, and electricity bills. Supporters say the law — the latest example of …