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directly feeling the man-made heat of global warming, scientists conclude in the first study to link the burning of fossil fuels to one country's rise in its daily temperature spikes.
• China emits more of the greenhouse gas than the next two biggest carbon pollut

ers -- the U.S. and India -- combined. And its emissions keep soaring by about 10 percent per year.
• While other studies have linked averaged-out temperature increases in China and other countries to greenhouse gases, this research is the first to link the warmer daily hottest and coldest readings, or spikes.
• Those spikes, which often occur in late afternoon and the early morning, are what scientists say most affect people's health, plants and animals. People don't notice changes in averages, but they feel it when the daily high is hotter or when it doesn't cool off at night to let them recover from a sweltering day.
• The study by Chinese and Canadian researchers found that just because of greenhouse gases, daytime highs rose 0.9 degree Celsius (1.7 degrees Fahrenheit) in the 46 years up to 2007. At night it was even worse: Because of greenhouse gases, the daily lows went up about 1.7 degrees Celsius (3 degrees Fahrenheit).
• ___

• WASHINGTON (AP) -- A filibuster averted. A likely accord on immigration reform. A former Republican presidential candidate thanked -- publicly! -- by the Senate's top Democrat. Lawmakers of both parties lunched together for the first time many could remember, agreeing to agree on the heroism of Sen. John McCain and the tragedy of the Newtown, Conn., massacre.
• Bipartisanship broke out on Capitol Hill on Thursday, a newsy development after years of polarization that infuriated the public, brought Congress to a near-halt and the country to the brink of economic disaster. It could all blow to pieces by the time you read this article -- fierce disputes remain on gun control and immigration, among others issues. And looming over it all is a midterm election next year with big implications for the divided government and President Barack Obama's legacy.
• But let history record that for a full day in battle-scarred Washington there it was: legislative progress, bipartisan bread-breaking and the emotional stuff of human relationships long-mourned and little-seen in recent years.

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