'An increased frequency and severity of heat waves is expected'

Under Pressure, White House Issues Climate Change Report

By ANDREW C. REVKIN, New York Times

The Bush administration, bowing to a court order, has released a fresh summary of federal and independent research pointing to large, and mainly harmful, impact of human-caused global warming in the United States.

The report, released Thursday, is online at climatescience.gov, along with a new report updating the administration’s priorities for climate research.

Most of the findings, like the spread of warmth-loving pests and the inevitable loss of low-lying lands to rising seas, are not new. But the report included new projections of how the poor, elderly and communities with lagging public-health and public-works systems will face outsize health risks from warming.

Among the report’s new conclusions on health: “An increased frequency and severity of heat waves is expected, leading to more illness and death, particularly among the young, elderly, frail and poor.” It added that deaths from cold would decline, but said uncertainties on both projections made it impossible to characterize the overall risk.

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