John Kerry, the senior Senator from Massachusetts, is expected to elevate climate change as secretary of state. Mr. Kerry is U. S. President Obama's official nominee for secretary of state.

Mr. Kerry, who was the 2004 presidential nominee of the Democratic Party, and is currently the chairman of the Senate Foreign Relations Committee, is well known for his concerns over expanding problem of global warming or climate change.

Mr. Kerry has long been warning that catastrophic global warming poses a big threat to global stability, human security, as well as to America's national security. He has also been stressing that global warming is totally man-made, and thus need the man to make efforts to reduce the problem.

Expressing his concerns over the issue, he further says, "Once you accept the science, it's clear that such massive environmental change will create dislocation, destruction, chaos, and conflict."

After tornados killed around 50 people in the Southeastern part of the country in 2008, Mr. Kerry blamed the man-made warming for the problem.

In 2010, he co-sponsored the American Power Act Bill, which would have set a U. S. cap-and-trade carbon trading system, but the Bill tumbled in the Senate without a vote.

Nonetheless, Mr. Kerry continued his campaign against man-made global warming. During the next four years, he is expected to keep on boosting efforts to stop global warming.