Sunday, July 15, 2018
Hawai'i Free Press

Current Articles | Archives

Monday, June 19, 2017
Global Warming: UH Professors Say Everybody in Hawaii Will Burn to Death. Soon. Real soon.
By News Release @ 5:10 PM :: 2599 Views :: Environment, Higher Education

Deadly heatwaves could affect 74 percent of the world’s population

by Lisa Shirota  UH News, June 19, 2017 

Two maps of the world comparing days per year with temperatures above deadly threshold

Number of days in a year by 2100 when climatic conditions will exceed the deadly threshold. a, strong mitigation and b, business-as-usual scenarios.

Seventy-four percent of the world’s population will be exposed to deadly heatwaves by 2100 if carbon gas emissions continue to rise at current rates, according to a study published in Nature Climate Change. Even if emissions are aggressively reduced, the percent of the world’s human population affected is expected to reach 48 percent. See a timelapse mapping of historical and projected heatwaves.

“We are running out of choices for the future,” said Camilo Mora, associate professor of geography in the College of Social Sciences at the University of Hawaiʻi at Mānoa and lead author of the study. “For heatwaves, our options are now between bad or terrible. Many people around the world are already paying the ultimate price of heatwaves, and while models suggest that this is likely to continue, it could be much worse if emissions are not considerably reduced. The human body can only function within a narrow range of core body temperatures around 37°C. Heatwaves pose a considerable risk to human life because hot weather, aggravated with high humidity, can raise body temperature, leading to life threatening conditions.”

Numerous examples, such as the 2003 European heatwave that killed approximately 70,000 people, the 2010 Moscow heatwave that killed 10,000 people and the 1995 Chicago heatwave that killed 700 people are staggering examples of the risk to life posed by heatwaves. But beyond these highly cited examples, little was known about how common such killer heatwaves are.

A team of researchers lead by Mora conducted an extensive review of over 30,000 relevant publications and found more than 1,900 cases of locations worldwide where high ambient temperatures have killed people since 1980. From those cases, dates were obtained for 783 lethal heatwaves in 164 cities across 36 countries, with most cases recorded in developed countries at mid-latitudes. Some of the cities that have experienced lethal heatwaves included New York, Washington, Los Angeles, Chicago, Toronto, London, Beijing, Tokyo, Sydney and São Paulo.

Threshold for deadly temperatures and humidities

By analyzing the climatic conditions of these lethal heat episodes, researchers identified a threshold beyond which temperatures and humidities become deadly. The area of the planet where such a threshold is crossed for 20 or more days per year has been increasing, and is projected to grow even with dramatic cuts in greenhouse gas emissions. Currently, about 30 percent of the world’s human population is exposed to such deadly conditions each year.

“Finding a threshold beyond which climatic conditions turn deadly is scientifically important yet frightening,” said Farrah Powell, a UH Mānoa graduate student and one of the co-authors in the study. “This threshold now allows us to identify conditions that are harmful to people. And because it is based on documented cases of real people across the globe, it makes it that more credible and relevant. The scary thing is how common those deadly conditions are already.”

By 2100 New York is projected to have around 50 days with temperatures and humidities exceeding the threshold in which people have previously died. That same year, the number of deadly days for Sydney will be 20, 30 for Los Angeles, and the entire summer for Orlando and Houston.

The study also found that the greatest risk to human life from deadly heat was projected for tropical areas. This is because the tropics are hot and humid year round, whereas for higher latitudes the risk of deadly heat is restricted to summer.

“Warming at the poles has been one of the iconic climatic changes associated with the ongoing emissions of greenhouse gases,” said co-author Iain Caldwell, a post-doctoral researcher at UH Mānoa. “Our study shows, however, that it is warming in the tropics what will pose the greatest risk to people from deadly heat events. With high temperatures and humidities, it takes very little warming for conditions to turn deadly in the tropics.”

“Climate change has put humanity on a path that will become increasingly dangerous and difficult to reverse if greenhouse gas emissions are not taken much more seriously,” says Mora. “Actions like the withdrawal from the Paris agreement is a step in the wrong direction that will inevitably delay fixing a problem for which there is simply no time to waste.”

Links

TEXT "follow HawaiiFreePress" to 40404

Register to Vote

2aHawaii

808 Silent Majority

808 State Update AM940

ABCDEFG Blog

ACA Signups Hawaii

ACCE

ALEC

Alliance Defending Freedom

Aloha Conservative Alliance

Aloha Life Advocates

Aloha Pregnancy Care Center

American Council of Trustees and Alumni

American Mothers of Hawaii

AMVETS-Hawaii

AntiPlanner

Antonio Gramsci Reading List

A Place for Women in Waipio

Audit The Rail

Ballotpedia Hawaii

Better Hawaii 

Blaisdell Memorial Project

Broken Trust

CAFR Hawaii

Castaway Conservative

Children's Alliance Hawaii

Children's Rights Institute

Christian Homeschoolers of Hawaii

Citizens for Recall

Cliff Slater's Second Opinion

Coffee Break

Conservative Forum for Hawaii

CSIS Pacific Forum

DAR Hawaii

DeedySupport.com

DVids Hawaii

E Hana Kakou Kelii Akina

E Māua Ola i Moku o Keawe

Farmers For Choice Hawaii

FIRE

Fix Oahu!

Follow the Money Hawaii

Frank in Hawaii

Front Page Magazine

Frontline: The Fixers

Genetic Literacy Project

Get Off Your Butts!

God, Freedom, America

Grassroot Institute

Habele.org

Hawaii Aganst Assisted Suicide

Hawaii Aquarium Fish Report

Hawaii Aviation Preservation Society

Hawaii Catholic TV

Hawaii Christian Coalition

Hawaii Cigar Association

Hawaii Coalition Against Legalized Gambling

Hawaii ConCon Info

Hawaii Credit Union Watch

Hawaii Crime Victims' Rights

Hawaii Crop Improvement Association

Hawaii Debt Clock

Hawaii Defending Marriage

Hawaii Defense Foundation

Hawaii Families for Educational Choice

Hawaii Family Advocates

Hawaii Family Forum

Hawaii Farmers and Ranchers United

Hawaii Farmer's Daughter

Hawaii Federalist Society

Hawaii Federation of Republican Women

Hawaii Firearm Community

Hawaii Fishermen's Alliance

Hawaii Future Project

Hawaii Gathering of Eagles

Hawaii History Blog

Hawaii Homeschool Association

Hawaii Jihadi Trial

Hawaii March for Life

Hawaii Meth Project

Hawaii's Partnership for Appropriate & Compassionate Care

Hawaii Public Charter School Network

Hawaii Rifle Association

Hawaii Right to Life -- Big Island

Hawaii Right to Life -- Oahu

Hawaii Senate Informer

Hawaii Shield Law Coalition

Hawaii Shippers Council

Hawaii Smokers Alliance

Hawaii State Data Lab

Hawaii Together

Hawaii Votes

Heritage Foundation

HI Coalition Against Legalized Gambling

HIEC.Coop

Hiram Fong Papers

Homeschool Legal Defense Hawaii

Honolulu Homeless Crisis

Honolulu Navy League

Honolulu Traffic

Horns of Jericho Blog

House Minority Blog

House Republican Caucus YouTube

HPACC

Hump Day Report

Hunting, Farming and Fishing Assoc.

I Vote Hawaii

If Hawaii News

Inouye-Kwock, NYT 1992

Inside the Nature Conservancy

Inverse Condemnation

Investigative Project on Terrorism

Iowa Meets Maui

Jackson v Abercrombie

Jihad Watch

Judgepedia Hawaii

July 4 in Hawaii

Kahle v New Hope

Kakaako Cares

Kau TEA Party

Kauai Co GOP

Keep Hawaii's Heroes

KeyWiki

Land and Power in Hawaii

Legislative Committee Analysis Tool

Lessons in Firearm Education

Lingle Years

Malulani Foundation

Managed Care Matters -- Hawaii

Malama Pregnancy Center of Maui

Mauna Kea Recreational Users Group

MentalIllnessPolicy.org

Middle East Forum--The Legal Project

Mililani Conservatives for Change

Military Home Educators' Network Oahu

Missile Defense Advocacy

MIS Veterans Hawaii

Muslim Brotherhood in America

NAMI Hawaii

NARTH

Natatorium.org

National Christian Foundation Hawaii

National Parents Org Hawaii

National Wind Watch

New Zeal

NFIB Hawaii News

No GMO Means No Aloha

Northwest Economic Policy Seminar

Not Dead Yet, Hawaii

Now What I Really Think

NRA-ILA Hawaii

Oahu Alternative Transport

ObamaCare Abortion Hawaii

OHA Lies

Ohana Policy Group

OurFutureHawaii.com

Pacific Aviation Museum

Patients Rights Council Hawaii

PEACE Hawaii

People vs Machine

Pritchett Cartoons 

Pro-GMO Hawaii

P.U.E.O.

RailRipoff.com

Rental by Owner Awareness Assn

Republican Party -- Hawaii State

Research Institute for Hawaii USA

Rick Hamada Show

RJ Rummel

Robotics Organizing Committee

Salvage The Rail

Save the Plastic Bag

School Choice in Hawaii

SenatorFong.com

SIFE Remington

SIFE W. Oahu 

Sink the Jones Act

Smart About Marijuana--Hawaii

St Marianne Copenull

State Budget Solutions Hawaii

State Policy Network

Statehood for Guam

Tax Foundation of Hawaii

TEA Party Maui

TFB Micronesia

The Harriet Tubman Agenda

The Long War Journal

The Real Hanabusa

Time Out Honolulu

Truth About Trade & Technology - Hawaii

UCC Truths

Union Members Know Your Rights

United Veterans Hawaii

US Tax Foundation Hawaii Info

Valor in the Pacific

VAREP Honolulu

Waagey.org

West Maui Taxpayers Association

What Natalie Thinks

Whole Life Hawaii

Yes2TMT