Great Lakes Region in US Raises Water Borne Disease Risk

A new study has determined that an anticipated increased incidence of climate-related extreme rainfall events in the Great Lakes region in the US .

A new study has determined that an anticipated increased incidence of climate-related extreme rainfall events in the Great Lakes region in the US may raise the public health risk for the 40 million people who depend on the lakes for their drinking water.

The study, by a team of Wisconsin researchers, indicates that a trend toward extreme weather such as the monsoon-like rainfall events that occurred in many parts of the region this past spring is likely to aggravate the risk for outbreaks of waterborne disease in the Great Lakes region.

UN Calls for Pedal Power to Reduce Environmental Damage
More bicycle riding and other lifestyle changes are urgently needed to reduce climate-altering carbon emissions that are damaging Asia's health and could also threaten the economy, bicycles usage

"If weather extremes do intensify, as these findings suggest, our health will be at greater risk," according to Jonathan Patz, a University of Wisconsin School of Medicine and Public Health professor of population health and an expert on the health effects of climate change.

A primary threat to human health, according to Patz, are the extreme precipitation events that overwhelm the combined urban storm water and sewage systems such as those in Milwaukee and Chicago, resulting in millions of gallons of raw sewage being diverted to Lake Michigan.

Adding to the risk throughout the region is the growing concentration of livestock operations where heavy rainfall can wash large amounts of animal waste into the rivers and streams that drain into the Great Lakes, the world's greatest concentration of fresh surface water.

Swimming In Troubled Waters
According to a new U.S. federal report, pollution at the nation’s 3,500 ocean, lake and bay beaches caused more than 25,000 closing or swimming advisory days last year.

"It's the perfect storm," noted Patz. "Deteriorating urban water infrastructure, intensified livestock operations, and extreme climate change-related weather events may well put water quality, and thereby our health, at risk," he added.

Climate change, scientists know, will prompt extremes of the hydrologic cycle, causing intensified precipitation as well as drought.

Fear of Epidemic Looms Over Flood Ravaged Orissa
As floodwaters recede in Orissa, the fear of an epidemic looms large in the face of inadequate healthcare facitities in the region.

Using the best available computer climate models, the Wisconsin researchers found that southern Wisconsin is likely to experience a 10 to 40 percent increase in the strength of extremely heavy precipitation events, leading to greater potential for flooding and the waterborne diseases that accompany the high discharge of sewage into Lake Michigan.

According to Patz and Stephen Vavrus, a climatologist and director of the UW-Madison Center for Climatic Research, the new study points to a need to strengthen pubic health infrastructure and improve aging urban drinking water and sewage systems, and to improve land use planning to reduce the amount of runoff that occurs in urban areas during major precipitation events.

The You, We Good News: Active Waterborne Diseases Become Inactive With UV Light
There's good news for all (You and we). The efficacy of UV light in nullifying large cryptosporidiosis outbreaks have been proved by researchers.

"This is where climate policy, land use policy and public health come together," said Patz.

Source-ANI
SPH