Study: Climate Change Linked to More Rain in Hurricanes
As Hurricane Barry trudges towards New Orleans, it's not the gale force winds grabbing the public spotlight. It's the rain, a byproduct of man-made climate change, according to a paper published in the journal Nature.
A tremendous amount of rain — 10 to 20 inches — is expected to fall from Thursday night to Saturday. That's on the heels of a tropical rainstorm that dropped seven inches of rain on Wednesday. Usually New Orleans gets six inches of rain in July, according to the New York Times.
Barry's rainfall is no longer an outlier, but a symptom of climate change. The research paper found that climate change intensified the rains of three major hurricanes that made landfall in the U.S. — Katrina, Irma and Maria — by 4 to 9 percent. The scientists also predicted that future warming could increase rainfall totals for the most extreme hurricanes and tropical cyclones by up to 30 percent, as PBS reported.
"Climate change is in general increasing the frequency and intensity of heavy rainfall storms," said Andreas Prein, a project scientist with the National Center for Atmospheric Research who was not involved with the study, as the New York Times reported.
Another scientific analysis, published in the journal Earth's Future, looked at Hurricane Harvey, which dumped an unprecedented 60 inches of rain on Houston. The authors of that study wrote, "[R]ecord high ocean heat values not only increased the fuel available to sustain and intensify Harvey but also increased its flooding rains on land. Harvey could not have produced so much rain without human‐induced climate change."
"If you look at the records, mostly it's the water that kills most people," Dr. Prein said to the New York Times.
The numbers show that the record rainfalls are producing flooding that is far more lethal than winds. Rain-induced flooding caused nearly 75 percent of the 162 fatalities in hurricanes and other tropical cyclones in the U.S. from 2016 to 2018, as the Sun-Sentinel in Fort Lauderdale reported. Most victims drowned near their vehicles, according to the National Hurricane Center.
That number excludes Hurricane Maria, which dropped a tremendous amount of rain on Puerto Rico. The death toll there and the causes were too difficult to calculate.
"I think we're at the beginnings of the new normal," said Ben Kirtman, director of the Center for Computational Science Climate and Environmental Hazards Program at the University of Miami's Rosenstiel School for Marine and Atmospheric Science, as the Sun-Sentinel reported.
"It's pretty simple. A warmer atmosphere holds more water vapor. And so when it comes time to condense all that water vapor and produce rainfall, there's more water vapor available. The second element is the engine for tropical storms; the energy source for that engine is warm ocean surface temperatures, and those have risen. As the climate system warms, the ocean warms. That means there's more fuel for these hurricanes, which can lead to enhanced rainfall."
Hurricane Barry's rainfall is happening at a particularly perilous time for the region after an extremely wet spring caused the region's rivers to swell. That has experts and residents concerned that the storm will overtop levees in New Orleans.
The flooding of the Mississippi River has left very little room for additional water, raising concern that the storm surge will inhibit river water from flowing out to sea.
"The ingredients are there for a real catastrophe if the flood control infrastructure simply gets overwhelmed," said David Gochis, a hydrometerological scientist at the National Center for Atmospheric Research, as the New York Times reported.
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People across New England witnessed a dramatic celestial event Sunday night.
EcoWatch Daily Newsletter
By David Reichmuth
Over the last month, I've seen a number of opinion articles attacking electric vehicles (EVs). Sadly, this comes as no surprise: now that the Biden administration is introducing federal policies to accelerate the roll out of electric vehicles, we were bound to see a reaction from those that oppose reducing climate changing emissions and petroleum use.
The majority of EVs sold in 2020 were models with a starting price (Manufacturers Suggested Retail Price) under $40,000 and only a fifth of models had a starting price over $60,000.
On Friday, China set out an economic blueprint for the next five years, which was expected to substantiate the goal set out last fall by President Xi Jinping for the country to reach net-zero emissions before 2060 and hit peak emissions by 2030.
The Great Trail in Canada is recognized as the world's longest recreational trail for hiking, biking, and cross-country skiing. Created by the Trans Canada Trail (TCT) and various partners, The Great Trail consists of a series of smaller, interconnected routes that stretch from St. John's to Vancouver and even into the Yukon and Northwest Territories. It took nearly 25 years to connect the 27,000 kilometers of greenway in ways that were safe and accessible to hikers. Now, thanks to a new partnership with the Canadian Paralympic Committee and AccessNow, the TCT is increasing accessibility throughout The Great Trail for people with disabilities.
Trans Canada Trail and AccessNow partnership for AccessOutdoors / Trails for All project. Mapping day at Stanley Park Seawall in Vancouver, British Columbia with Richard Peter. Alexa Fernando<p>This partnership also comes at a time when access to outdoor recreation is more important to Canadian citizens than ever. <a href="https://www150.statcan.gc.ca/n1/daily-quotidien/200527/dq200527b-eng.htm" target="_blank" rel="noopener noreferrer">Studies from the spring of 2020</a> indicate that Canadian's <a href="https://www.bnnbloomberg.ca/moneytalk-mental-health-during-covid-19-1.1567633" target="_blank" rel="noopener noreferrer">mental health has worsened</a> since the onset of social distancing protocols due to COVID-19. </p><p>The <a href="https://www.mayoclinic.org/diseases-conditions/coronavirus/in-depth/safe-activities-during-covid19/art-20489385" target="_blank" rel="noopener noreferrer">Mayo Clinic</a> lists hiking, biking, and skiing as safe activities during COVID-19. Their website explains, "When you're outside, fresh air is constantly moving, dispersing these droplets. So you're less likely to breathe in enough of the respiratory droplets containing the virus that causes COVID-19 to become infected."</p><p>TCT leadership took this into consideration when embarking on the accessibility project. McMahon explains that there has never been a more important time to bring accessibility to the great outdoors: "Canadians have told us that during these difficult times, they value access to natural spaces to stay active, take care of their mental health, and socially connect with others while respecting physical distancing and public health directives. This partnership is incredibly important especially now as trails have become a lifeline for Canadians."</p><p>Together, these organizations are paving the way for better physical and mental health among all Canadians. To learn more about the TCT's mission and initiatives, check out their <a href="https://thegreattrail.ca/stories/" target="_blank">trail stories</a> and <a href="https://thegreattrail.ca/wp-content/uploads/2021/01/TCT_2020-Donor-Impact-Report_EN_8.5x14-web.pdf" target="_blank">2020 Impact Report</a>.</p>