Climate Change

Cough, Cough: Climate Change May Worsen Air Pollution

Publication: NBC News   Date: June 22, 2014   View Article

Residents of bulging metropolises around the world should brace for an increase in stagnant, polluted air that hangs around for days as a result of climate change-related shifts in wind and rainfall patterns, according to a new study.

The findings highlight one way global warming can compromise human health, which is a major thrust behind the U.S. Environmental Protection Agency’s recently proposed plan to curb power plant carbon emissions 30 percent by the year 2030, said Janice Nolen, an assistant vice president at the American Lung Association in Washington.

Insurer’s Message: Prepare for Climate Change or Get Sued

Publication: NBC News   Date: June 6, 2014   View Article

To insurance companies, there’s no doubt that climate change is here: They are beginning to file lawsuits against small towns and cities who they say haven’t prepared for the floods and storms that will cost the companies billions in payments.

Earlier this week, the U.S. arm of a major global insurance company backed away from an unprecedented lawsuit against Chicago and its suburbs for failing to prepare for heavy rains and associated flooding it claimed were fueled by global warming. While legal experts said the case was a longshot, its withdrawal didn’t alter the message it contained for governments: prepare now for climate change or pay the price.

New Carbon Rules: Here’s How States Could Be Forced to Cut Emissions

Publication: NBC News   Date: June 2, 2014   View Article

In a bid to stave off the dire effects of global warming on human health and the environment, the White House on Monday unveiled a new plan to slash carbon emissions from the power sector by 30 percent below 2005 levels by the year 2030.

“That’s like cancelling out annual carbon pollution from two-thirds of all cars and trucks in America,” Gina McCarthy, the administrator of the U.S. Environmental Protection Agency, said in announcing the new rules.

Arctic Ship Traffic and Oil Spill Worries Rise as Ice Recedes

Publication: NBC News   Date: May 25, 2014   View Article

Ships packed with frozen mackerel and herring will sail in convoy behind a Russian nuclear-powered icebreaker from Norway to Asia this summer along the Northern Sea Route through the Arctic Ocean — a trial run as companies rush to capitalize on the world’s hunger for fish and to extract minerals from the top of the world.

Dozens of ships now transit the Arctic each year amid decreasing summer ice — in 2013,71 vessels plied the Northern Sea Route, including the first container ship. In another first, a bulk carrier transited coal through the famed Northwest Passage on a voyage from Vancouver, British Columbia, Canada, to Finland. And that traffic is only likelier to get busier.

Hundreds more ships “go up to the Arctic and perform some activity and then they come out,” Lawson Brigham, a professor of geography and Arctic policy at the University of Alaska, Fairbanks, explained to NBC News. Most of these ships transport equipment to mines and other industrial sites and leave with commodities such as oil, gas, copper, nickel, and iron ore.

Climate Warming Driving Native Trout to Extinction, Study Says

Publication: NBC News   Date: May 25, 2014   View Article

Montana fly fishing guide and shop owner Jason Lanier hooks a feisty rainbow trout almost every day he hits the waters in the lower valley of the Flathead River system. From an angler’s perspective, the catch is a thrill. Rainbows put up a good fight, much better than the one offered by the state’s native westslope cutthroat trout.

“And cutthroats that have some rainbow genetics in them typically fight harder for sure,” the owner of the Bigfork Anglers Fly Shop told NBC News.

About 20 million rainbows were stocked in the river system that spans Montana and southern British Columbia, Canada, from the late 1800s to 1969. The fish can, and do, mate with cutthroats. This hybridization may drive the genetically pure natives to extinction, according to Clint Muhlfeld, a research ecologist with the U.S. Geological Survey in West Glacier, Mont.

What’s more, climate change is accelerating the hybridization process, according to new research led by Muhlfeld. “This is the first example we are aware of that has shown how invasive hybridization has probably spread due to climate warming,” he told NBC News.

Global Warming Linked to Frigid U.S. Winter, Scientist Says

Publication: NBC News   Date: May 22, 2014   View Article

The extreme cold and snow across the eastern half of the United States this past winter makes global warming seem laughable. But, paradoxically, the blasts of polar air were fueled in part by planet-warming gases, according to a new paper.

In particular, the gases helped plow heat into the tropical western Pacific Ocean that, in turn, drove the jet stream further north toward the Arctic before it funneled cold, snowy weather over the Midwest and East Coast, explained Tim Palmer, a climate physicist at the University of Oxford in the United Kingdom.

Climate Change Catastrophes Ahead? Here’s How We Can Prepare

Publication: NBC News   Date: May 6, 2014   View Article

Heat waves, droughts, and downpours across the United States are likely to increase according to a White House report released Tuesday — and experts say all we might be able to do now is prepare for what’s to come.

“People have this perception of this being an issue that affects our kids but not us, or affects polar bears in the Arctic but not us, and what this report really brings home is the fact that climate change is affecting us right here, today,” said Katharine Hayhoe, a lead author of National Climate Assessment report.

The report lays out how dramatic changes in weather, from rising heat to too much water on the East Coast and too little water on the West, will likely impact the U.S. in coming decades.

© 2008-2010 Collected Writings By John Roach