U.S. equities are opening a little higher after rallying in the month of May. Markets are welcoming headlines from overseas. China's PMI was 50.8 in May, stronger than expected at a 5-month high. Monday is holiday in the Greater China area, but the Nikkei rallied more than 2% in response. Germany's PMI, however, was weaker than expected at 52.3. The Euro is under pressure and down a bit against the dollar overnight. But European indexes are moving up because the market expects the ECB to ease later this week. On the U.S. side, President Obama is moving the fight against climate change forward. He will propose cuts to power-plant emissions by an average of 30% from the 2005 level by the year 2030. Potential job cuts and rise in electricity price will also be debated. The Worldwide Developers Conference is kicking off in San Francisco. Apple's Tim Cook will take the stage and tell us about the latest iStuff.

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