The draft report of the Third Climate Assessment by 240 scientists, business and academic leaders was released Friday. The LA Times story on it began: "The impacts of climate change driven by human activity are spreading through the United States faster than had been predicted, increasingly threatening infrastructure, water supplies, crops and shorelines, according to a federal advisory committee.
"Climate change, once considered an issue for a distant future, has moved firmly into the present," the report says. "Americans are noticing changes all around them. Summers are longer and hotter, and periods of extreme heat last longer than any living American has ever experienced. Winters are generally shorter and warmer."
NPR's printed report added:
Temperatures will continue to rise in America, "with the next few decades projected to see another 2 degrees [Fahrenheit] to 4 degrees [Fahrenheit] of warming in most areas," according to the latest National Climate Assessment, which came out Friday afternoon.
That means we can expect to see more "extreme weather events," according to the report, such as heavy precipitation — particularly in the Northeast and Midwest — and intense Atlantic hurricanes. Other parts of the U.S. will experience heat waves and droughts, especially in the West.
By 2100, U.S. temperatures are projected to rise 3 to 5 degrees, under the most optimistic estimates — and 5 to 10 degrees if global greenhouse gas emissions continue to increase."
The report says that evidence for climate crisis effects is now strong:
"Many more impacts of human-caused climate change have now been observed. Corn producers in Iowa, oyster growers in Washington State, and maple syrup producers in Vermont have observed changes in their local climate that are outside of their experience. So, too, have coastal planners from Florida to Maine, water managers in the arid Southwest and parts of the Southeast, and Native Americans on tribal lands across the nation."
The Guardian story noted this:
"Future generations of Americans can expect to spend 25 days a year sweltering in temperatures above 100F (38C), with climate change on course to turn the country into a hotter, drier, and more disaster-prone place.
"Climate change is already affecting the American people," the draft report said. "Certain types of weather events have become more frequent and/or intense including heat waves, heavy downpours and in some regions floods and drought. Sea level is rising, oceans are becoming more acidic, and glaciers and Arctic sea ice are melting."
By the end of the 21st century, climate change is expected to result in increased risk of asthma and other public health emergencies, widespread power blackouts, and mass transit shutdowns, and possibly shortages of food.
"Proactively preparing for climate change can reduce impacts, while also facilitating a more rapid and efficient response to changes as they happen," said Katharine Jacobs, the director of the National Climate Assessment.
"As climate change and its impacts are becoming more prevalent, Americans face choices," the report said. "Beyond the next few decades, the amount of climate change will still largely be determined by the choices society makes about emissions. Lower emissions mean less future warming and less severe impacts. Higher emissions would mean more warming and more severe impacts."
As the report made clear: no place in America had gone untouched by climate change. Nowhere would be entirely immune from the effects of future climate change."
Here's the White House summary of this report, which is now open to public comment.
Outside of this report, the reality of U.S. rising temperatures in 2012 is quantified here. Note that temperatures were higher than normal for 16 months straight.
But North America is hardly alone in feeling the effects. A New York Times report Friday notes that "Around the world, extreme has become the new commonplace.
"China is enduring its coldest winter in nearly 30 years. Brazil is in the grip of a dreadful heat spell. Eastern Russia is so freezing — minus 50 degrees Fahrenheit, and counting — that the traffic lights recently stopped working in the city of Yakutsk.