South Florida

Resilience System


Scientists Say the Pace of Sea Level Rise Has Nearly Tripled Since 1990

           

An iceberg is pictured in the western Antarctic peninsula in March 2016. (Eitan Abramovich/AFP/Getty Images)

CLICK HERE - RESEARCH - PNAS - Reassessment of 20th century global mean sea level rise

washingtonpost.com - by Chris Mooney - May 22, 2017

A new scientific analysis finds that the Earth’s oceans are rising nearly three times as rapidly as they were throughout most of the 20th century, one of the strongest indications yet that a much feared trend of not just sea level rise, but its acceleration, is now underway.

“We have a much stronger acceleration in sea level rise than formerly thought,” said Sönke Dangendorf, a researcher with the University of Siegen in Germany who led the study along with scientists at institutions in Spain, France, Norway and the Netherlands.

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New Zika Virus Inhibitor Identified

CLICK HERE - RESEARCH - Characterization of the Zika virus two-component NS2B-NS3 protease and structure-assisted identification of allosteric small-molecule antagonists

business-standard.com - ANI - May 17, 2017

A new research has brought a drug to treat Zika infections closer to reality.

The team led by Alexey Terskikh and Alex Strongin from Sanford Burnham Prebys Medical Discovery Institute (SBP) discovered a compound that prevents the virus from spreading.

"We identified a small molecule that inhibits the Zika virus protease, and show that it blocks viral propagation in human cells and in mice," Terskikh said. "Anti-Zika drugs are desperately needed. The fact that the compound seems to work in vivo is really promising, so we plan to use it as a starting point to make an even more potent and effective drug."

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Are Solar and Wind Really Killing Coal, Nuclear and Grid Reliability?

           

Lessons from the Lone Star State: A surge in wind power on the Texas grid didn’t cause reliability problems (and brought down electricity prices) because regulators improved the efficiency of wholesale electricity markets. Sarah Fields Photography/Shutterstock.com

theconversation.com - by Joshua D. Rhodes, Michael E. Webber, Thomas Deetjen and Todd Davidson - May 11, 2017

U.S. Secretary of Energy Rick Perry in April requested a study to assess the effect of renewable energy policies on nuclear and coal-fired power plants.

Some energy analysts responded with confusion, as the subject has been extensively studied by grid operators and the Department of Energy’s own national labs. Others were more critical, saying the intent of the review is to favor the use of nuclear and coal over renewable sources.

So, are wind and solar killing coal and nuclear? Yes, but not by themselves and not for the reasons most people think. Are wind and solar killing grid reliability? No, not where the grid’s technology and regulations have been modernized. In those places, overall grid operation has improved, not worsened.

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2016: A Historic Year for Billion-Dollar Weather and Climate Disasters in U.S.

           

CLICK HERE - NCDC - NOAA - Billion-Dollar Weather and Climate Disasters: Overview

climate.gov - by Adam B. Smith - January 9, 2017

NOAA’s National Centers for Environmental Information (NCEI) tracks U.S. weather and climate events that have great economic and societal impacts (www.ncdc.noaa.gov/billions). Since 1980, the U.S. has sustained 203 weather and climate disasters where the overall damage costs reached or exceeded $1 billion (including adjustments based on the Consumer Price Index, as of January 2017). The cumulative costs for these 203 events exceed $1.1 trillion.

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US May Be Severely Underestimating Zika's Potential Impact; Costs Could Be in the Billions

Deadly carriers of disease: Aedes aegypti mosquitoes.  Paulo Whitaker | Reuters

Gulf Coast region is vulnerable to Zika attacks

Congress may not appreciate full extent of potential damage

Conservative calculations suggest full impact could exceed $2 billion

CLICK HERE - PLOS - The potential economic burden of Zika in the continental United States

cnbc.com - by Robert Ferris - May 11, 2017

The Zika virus stands to cost the United States billions of dollars, even if few people are infected.

Researchers from several American institutions have calculated that the "virus from Hell" could result in total costs ranging from $183 million to over $1.2 billion, depending on infection rates in several at-risk states in the South.

The researchers warn that infection rates could engender costs that exceed the amounts of money the U.S. government may give for prevention and treatment, if the recent debates over funding are any indication.

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Zika Testing Recommendations Changed for Pregnant Women

           

A nurse practitioner gives a pregnant woman insecticide and information about Zika at a Miami clinic last summer.  LYNNE SLADKY/AP

CLICK HERE - CDC - Health Alert Network (HAN) - Prolonged IgM Antibody Response in People Infected with Zika Virus: Implications for Interpreting Serologic Testing Results for Pregnant Women

statnews.com - by Helen Branswell - May 5, 2017

 . . . Testing for Zika infection is becoming more difficult, making it harder for doctors to advise pregnant women about the chances their child might have a Zika-related birth defect, the Centers for Disease Control and Prevention revealed in a health advisory issued Friday.

The CDC is now suggesting that women thinking of getting pregnant, and who may be exposed to the Zika virus through travel or because of where they live, should consider having their blood tested for Zika antibodies before they get pregnant. Having a baseline reading would help to interpret Zika tests done during a later pregnancy.

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Here’s the Ideal Temp for Mosquito-Borne Diseases

           

(Credit: budak/Flickr)

CLICK HERE - PLOS - Detecting the impact of temperature on transmission of Zika, dengue, and chikungunya using mechanistic models

futurity.org - Stanford University - May 5, 2017

New research shows how rising temperatures might influence mosquito behavior and disease risk around the world. The researchers also calibrated their model with field data on human infections of mosquito-borne diseases.

Scientists have known for some time that climate change has caused the extension of mosquito season beyond the summer months, but the ways in which climate change affects the risk of mosquito-borne diseases such as dengue, chikungunya, and Zika has remained somewhat mysterious . . .

 . . . The group found that mosquito traits favorable to spreading disease peaked when temperatures reached 29 degrees Celsius (84 degrees Fahrenheit), but were lower when temperatures were cooler or warmer.

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Florida Officials: No Zika Found in Mosquito Samples So Far

 

Florida Department of Agriculture and Consumer Services - April 27, 2017

The department continues to support local programs by providing mosquito testing at the Bronson Animal Disease Diagnostic Laboratory. To date, nearly 90,000 individual mosquitoes, represented by more than 6,500 pools of mosquitoes, have been tested for the presence of the Zika virus. Of those collected in 2017, none has yielded positive results.

CLICK HERE - Florida Department of Agriculture and Consumer Services Hosts Statewide Zika Workshops

CLICK HERE - Associated Press - Florida officials: No Zika found in mosquito samples so far

 

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High Level of Heart Defects Found in Zika-Affected Babies

kontiki / iStock

CLICK HERE - PLOS - Echocardiographic findings in infants with presumed congenital Zika syndrome: Retrospective case series study

cidrap.umn.edu - by Lisa Schnirring - April 21, 2017

Echocardiography evaluation of a group of Brazilian babies with Zika-related birth defects found three times the expected rate of congenital heart disease (CHD), but only one infant had symptoms and most had minor septal defects that weren't hemodynamically significant.

The study is the first time CHD has been assessed in infants with congenital Zika infections, and so far there haven't been any reports of autopsy findings suggesting a connection, but other flaviviruses such as dengue have been associated with myocarditis and pericarditis.

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Why the Menace of Mosquitoes Will Only Get Worse

Aedes aegypti. Credit Andrew Bettles for The New York Times

Climate change is altering the environment in ways that increase the potential for viruses like Zika.

nytimes.com - by Maryn McKenna - April 20, 2017

 . . . Climate change is turning abnormal weather into a common occurrence: Last year was the warmest year on record, the third in a row, and there were more heat waves, freezes and storms in the United States that caused $1 billion or more in damage just in 2016 than in the years 1980 to 1984 combined. Anything that improves conditions for mosquitoes tips the scales for the diseases they carry as well: the West Nile virus that flattened Dallas, the dengue that returned to Florida in 2009 after 63 years and the newest arrival, Zika, which gained a toehold in the United States last year and is expected to surge this summer . . .

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‘They’re Just Hiding’: Experts Say Puerto Rico May Be Underreporting Zika-Affected Births

submitted by Alicia Juarrero

           

A mother caresses her 2-month-old son, who has been diagnosed with microcephaly.  CARLOS GIUSTI/AP

statnews.com - by Helen Branswell - April 8, 2017

The number of babies born in Puerto Rico with microcephaly and other birth defects caused by the Zika virus appears to be unexpectedly low — so low that experts are beginning to question whether the actual count is being significantly underreported by authorities on the island.

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Stunning Drops in Solar and Wind Costs Turn Global Power Market Upside Down

           

CREDIT: U.N. and BNEF

CLICK HERE - REPORT - United Nations and Bloomberg New Energy Finance (BNEF) - GLOBAL TRENDS IN RENEWABLE ENERGY INVESTMENT 2017 (90 page .PDF report)

The world built more renewables for far less money last year, report UN and Bloomberg New Energy Finance.

thinkprogress.org - by Joe Romm - April 6, 2017

Stunning drops in the cost of wind and solar energy have turned the global power market upside down . . .

 . . . Unsubsidized renewables have become the cheapest source of new power — by far — in more and more countries, according to a new report from the United Nations and Bloomberg New Energy Finance (BNEF).

In just one year, the cost of solar generation worldwide dropped on average 17 percent, the report found. The average costs for onshore wind dropped 18 percent last year, while those for offshore wind fell a whopping 28 percent.

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Thousands Of Bacteria-Infected Mosquitoes Released To Fight Zika & Other Viruses

           

miami.cbslocal.com - April 18, 2017

On Tuesday, the Florida Keys Mosquito Control District released 20,000 male mosquitoes infected by the Kentucky-based company MosquitoMate with naturally occurring Wolbachia bacteria.

The offspring produced when the lab-bred mosquitoes mate with wild female mosquitoes won’t survive to adulthood. Male mosquitoes don’t bite, and Wolbachia is not harmful to humans.

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Receding Glacier Causes Immense Canadian River to Vanish in Four Days

       

A view of the ice canyon that now carries meltwater from the Kaskawulsh glacier, seen here on the right, away from the Slims river and toward the Kaskawulsh river. Photograph: Dan Shugar/University of Washington Tacoma

First ever observed case of ‘river piracy’ saw the Slims river disappear as intense glacier melt suddenly diverted its flow into another watercourse

theguardian.com - by Hannah Devlin - April 17, 2017

An immense river that flowed from one of Canada’s largest glaciers vanished over the course of four days last year, scientists have reported, in an unsettling illustration of how global warming dramatically changes the world’s geography.

The abrupt and unexpected disappearance of the Slims river, which spanned up to 150 metres at its widest points, is the first observed case of “river piracy”, in which the flow of one river is suddenly diverted into another.

(READ COMPLETE ARTICLE)

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There’s Another Mosquito Carrying Zika Virus

submitted by Alicia Juarrero

           

CLICK HERE - Journal of Medical Entomology - Evidence of Zika Virus RNA Fragments in Aedes albopictus (Diptera: Culicidae) Field-Collected Eggs From Camaçari, Bahia, Brazil

Zika Found in Common Backyard Asian Tiger Mosquito

nbcnews.com - by Maggie Fox - April 14, 2017

A common backyard mosquito can be infected with the Zika virus and it may pass the virus along in its eggs, researchers reported Friday.

The findings add to worries that the Asian tiger mosquito, scientifically known as Aedes albopictus, could help spread the virus as mosquito season hits temperate regions of the world.

The study, published in the Journal of Medical Entomology, doesn't prove that tiger mosquitoes can spread Zika, which causes severe birth defects. But it adds to evidence that they might.

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