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Report Finds 4 out of 5 Americans Hit by Recent Weather Disasters

Climate
Report Finds 4 out of 5 Americans Hit by Recent Weather Disasters

Environment America

After a year that saw many parts of the country hit by scorching heat, devastating wildfires, severe storms and record flooding, a new Environment America report documents how global warming could lead to certain extreme weather events becoming even more common or more severe in the future. The report found that, already, 4 out of 5 Americans live in counties affected by federally declared weather-related disasters since 2006. Last year’s Hurricane Irene, which resulted in the death of 45 people in the 13 states hit by the storm, and an estimated $7.3 billion in damage, is one of the extreme weather events highlighted in the report.

“Millions of Americans have lived through extreme weather causing extremely big problems for our economy and our public safety,” said Nathan Willcox, Environment America’s federal global warming program director. “Given that global warming will likely fuel even more extreme weather, we need to cut dangerous carbon pollution now.”

The new report, entitled In the Path of the Storm: Global Warming, Extreme Weather, and the Impacts of Weather-Related Disasters in the United States, examined county-level weather-related disaster declaration data from the Federal Emergency Management Agency for 2006 through 2011 to determine how many Americans live in counties hit by recent weather disasters. The complete county-level data can be viewed through an interactive map available here. The report also details the latest science on the projected influence of global warming on heavy rain and snow; heat, drought and wildfires; and hurricanes and coastal storms. Finally, the report explores how the damage from even non-extreme weather events could increase due to other impacts of global warming such as sea level rise.

Key findings from the Environment America report include:

  • Since 2006, federally declared weather-related disasters affected 2,466 counties across the U.S. which house more than 242 million people.
  • 2011 set a record with at least 14 weather disasters across the country inflicting more than $1 billion each in damage, the total cost in damages from these disasters amounted to $55 billion.
  • Other research shows that the U.S. has experienced an increase in heavy precipitation events, with the rainiest 1 percent of all storms delivering 20 percent more rain on average at the end of the 20th century than at the beginning. The trend towards extreme precipitation is projected to continue in a warming world, even though higher temperatures and drier summers will likely also increase the risk of drought in between the rainy periods and for certain parts of the country.
  • Records show that the U.S. has experienced an increase in the number of heat waves over the last half-century. Scientists project that the heat waves and unusually hot seasons will likely become more common in a warming world.
  • Other research predicts that hurricanes are expected to become even more intense and bring greater amounts of rainfall in a warming world, even though the number of hurricanes may remain the same or decrease. 

Environment America was joined by Sens. Bernie Sanders (I-VT) and John Kerry (D-MA) in releasing their report.

“Global warming is real and we are seeing significant impacts today. We must cut greenhouse gas emissions and move to energy efficiency and sustainable energy. If we move in that direction we can create, over a period of years, millions of good-paying jobs,” said Sen. Sanders.

“Years and years of peer reviewed scientific studies should've been motivation enough for Washington to get serious about climate change instead of denying its consequences and ducking tough choices. This study is the latest and the last red alert that inaction is risking lives here at home. This is not business as usual for Mother Nature. I've never in my life seen the extreme weather patterns I've witnessed with my own eyes the last years in New England, and I'm sick and tired of politicians ducking the issue and finding excuses for inaction or worse. At this point, you're either on the side of dealing with reality or you're against it," Sen. Kerry added.

Willcox noted that global warming is expected to have varying impacts on different types of extreme weather events. While the Intergovernmental Panel on Climate Change recently concluded that it is “virtually certain” that hot days will become hotter and “likely” that extreme precipitation events will continue to increase worldwide, there is little scientific consensus about the impact of global warming on events such as tornadoes. In addition, every weather event is now a product of a climate system where global warming “loads the dice” for extreme weather, though in different ways for different types of extreme weather.

“The bottom line is that extreme weather is happening, it is causing very serious problems, and global warming increases the likelihood that we’ll see even more extreme weather in the future,” said Willcox. “Carbon pollution from our power plants, cars and trucks is fueling global warming, and so tackling global warming demands that we cut emissions of carbon pollution from those sources.”

The report was released as the Obama administration is finalizing historic new carbon pollution and fuel efficiency standards for cars and light trucks, and as the U.S. Environmental Protection Agency is poised to develop carbon pollution standards for coal-fired power plants—the largest single source of the carbon pollution that is fueling global warming. At the same time, some polluting industries and their allies in Congress are working to block these and other clean air standards. Environment America applauded those members of the U.S. Senate who have continued their efforts to hold polluters accountable by rejecting attacks on clean air standards.

“We applaud the Obama administration for the clean car standards they are finalizing, and urge EPA to move ahead with strong carbon pollution standards for coal-fired power plants,” said Willcox. “The extreme weather we suffered through in 2011 is a frightening reminder of why we must do everything we can to cut the dangerous carbon pollution that is fueling global warming, and lessen the threat of even worse extreme weather in the future.”

For more information, click here.

A net-casting ogre-faced spider. CBG Photography Group, Centre for Biodiversity Genomics / CC BY-SA 3.0

Just in time for Halloween, scientists at Cornell University have published some frightening research, especially if you're an insect!

The ghoulishly named ogre-faced spider can "hear" with its legs and use that ability to catch insects flying behind it, the study published in Current Biology Thursday concluded.

"Spiders are sensitive to airborne sound," Cornell professor emeritus Dr. Charles Walcott, who was not involved with the study, told the Cornell Chronicle. "That's the big message really."

The net-casting, ogre-faced spider (Deinopis spinosa) has a unique hunting strategy, as study coauthor Cornell University postdoctoral researcher Jay Stafstrom explained in a video.

They hunt only at night using a special kind of web: an A-shaped frame made from non-sticky silk that supports a fuzzy rectangle that they hold with their front forelegs and use to trap prey.

They do this in two ways. In a maneuver called a "forward strike," they pounce down on prey moving beneath them on the ground. This is enabled by their large eyes — the biggest of any spider. These eyes give them 2,000 times the night vision that we have, Science explained.

But the spiders can also perform a move called the "backward strike," Stafstrom explained, in which they reach their legs behind them and catch insects flying through the air.

"So here comes a flying bug and somehow the spider gets information on the sound direction and its distance. The spiders time the 200-millisecond leap if the fly is within its capture zone – much like an over-the-shoulder catch. The spider gets its prey. They're accurate," coauthor Ronald Hoy, the D & D Joslovitz Merksamer Professor in the Department of Neurobiology and Behavior in the College of Arts and Sciences, told the Cornell Chronicle.

What the researchers wanted to understand was how the spiders could tell what was moving behind them when they have no ears.

It isn't a question of peripheral vision. In a 2016 study, the same team blindfolded the spiders and sent them out to hunt, Science explained. This prevented the spiders from making their forward strikes, but they were still able to catch prey using the backwards strike. The researchers thought the spiders were "hearing" their prey with the sensors on the tips of their legs. All spiders have these sensors, but scientists had previously thought they were only able to detect vibrations through surfaces, not sounds in the air.

To test how well the ogre-faced spiders could actually hear, the researchers conducted a two-part experiment.

First, they inserted electrodes into removed spider legs and into the brains of intact spiders. They put the spiders and the legs into a vibration-proof booth and played sounds from two meters (approximately 6.5 feet) away. The spiders and the legs responded to sounds from 100 hertz to 10,000 hertz.

Next, they played the five sounds that had triggered the biggest response to 25 spiders in the wild and 51 spiders in the lab. More than half the spiders did the "backward strike" move when they heard sounds that have a lower frequency similar to insect wing beats. When the higher frequency sounds were played, the spiders did not move. This suggests the higher frequencies may mimic the sounds of predators like birds.

University of Cincinnati spider behavioral ecologist George Uetz told Science that the results were a "surprise" that indicated science has much to learn about spiders as a whole. Because all spiders have these receptors on their legs, it is possible that all spiders can hear. This theory was first put forward by Walcott 60 years ago, but was dismissed at the time, according to the Cornell Chronicle. But studies of other spiders have turned up further evidence since. A 2016 study found that a kind of jumping spider can pick up sonic vibrations in the air.

"We don't know diddly about spiders," Uetz told Science. "They are much more complex than people ever thought they were."

Learning more provides scientists with an opportunity to study their sensory abilities in order to improve technology like bio-sensors, directional microphones and visual processing algorithms, Stafstrom told CNN.

Hoy agreed.

"The point is any understudied, underappreciated group has fascinating lives, even a yucky spider, and we can learn something from it," he told CNN.

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