Showing posts with label National Climate Change Assessment. Show all posts
Showing posts with label National Climate Change Assessment. Show all posts

Friday, December 6, 2019

CLIMATE CHANGE: A WORLD ON FIRE


The Amazon, parts of Australia, Indonesia, Siberia, California and even North Carolina are on fire. Southern France is inundated with flood waters. The permafrost in the Arctic Circle is melting, while travelers at Thanksgiving here in the U.S. faced the first “bomb cyclone” of the season. The devastating effects of global warming are not something we will see in the distant future. They are here. Now.

Signs of life? No, wildfires in Australia seen from space (NASA).
The United Nations annual climate conference is meeting this week in Madrid, (most) countries of the world confronting the ominous implications of scientific studies from all over the globe, summarized in the World Meteorological Organization’s annual state of the global climate report, issued Tuesday. In that document, spanning a decade of increasing global temperatures and more dramatic impacts, WMO Secretary General Petteri Taalas states bluntly, “Things are getting worse.” He adds, “The only solution is to get rid of fossil fuels in power production, industry and transportation.” *

Meanwhile, folks in the United States are still trying to absorb the implications of last year's   National Climate Assessment, a collaborative document produced every four years by the combined efforts of over 300 scientists and analysts at NASA, NOAA, the Department of Defense and ten other agencies. The Federal report caused controversy when it was released a year ago without notice on Black Friday, a day when not even the most devoted environmental wonk would be scanning his or her news feed. The lead authors of the report themselves were given no advance warning of the change in release date; one scientist had to put Thanksgiving pie-baking on hold to do a quick read-through of the final report for the stealth launch. And no one knows, or will say, who ordered the quickie “Friday news dump.”

Still, the report was full of pertinent, if unwelcome, facts. After analyzing thousands of studies from every region of the country, the scientists concluded that, if unchecked, global warming will cost the United States economy billions of dollars per year and thousands of lives as well. Some effects will be devastating to communities in the short run—the loss of homes, businesses and crops; but many will be permanent—the extinction of species, for example, or the loss of fisheries, forests and coastlines.

The report pulls no punches in its conclusions, from its opening sentences: “Earth’s climate is now changing faster than at any point in the history of modern civilization, primarily as a result of human activities. The assumption that current and future climate conditions will resemble the recent past is no longer valid.”

We have all heard, in isolated news reports, the damning evidence pinpointed in the Assessment: the rise in temperature in the U.S alone of 1.8 Fahrenheit since 1901; the shrinkage of the Western mountain snowpack in the last 50 years; 16 of the 17 hottest years on record since 2000; droughts, floods, wildfires.
 
These “can only be explained by the effects that human activities, especially emissions of greenhouse gases, have had on the climate,” the report says. The scientists go on to say that if we wish to avoid 3.6 degrees of warming, we must cut this kind of pollution by 2040. If we do nothing and greenhouse-gas emissions continue to rise, the Earth could warm by as much as 9 degrees by 2100.** 


Other scientists have stated even a two-degree rise in temperature will result in irreversible changes in our environment. Tolerating a 3.6 rise will mean major sacrifice at all levels of society and significant new technologies. Nine degrees is unthinkable. Our planet would not survive it. The Earth would be as uninhabitable as Mars.***

The problem is that 2100 seems like an impossibly long time in the future for most folks. My  grandchildren (and yours, if you have any) will be facing the nursing home by then, if they are still alive. But those climate changes won’t just happen in 2099. They will happen in 2020 and 2025 and 2030 and every year until 2100, gradually bringing more and worse disasters. We’ll very probably reach the point of no return (the “tipping point,” as scientists put it, the point where we can no longer reverse the damage) long before that distant date. Some scientists believe we have already passed that point. 

An even greater obstacle to climate action is that the effects of global warming fall disproportionately on the poor and disadvantaged of any country. Wealthy members of society can be insulated from the worst of what happens outside their penthouses. But the working class fishermen of Tangier Island in Virginia and the Pacific Islanders of Kiribati, the African-American communities in the low-lying parishes of New Orleans and counties of Eastern North Carolina, the Inuit/First Nations villagers of Arctic Canada and Alaska, the Native American tribes of the desert Southwest, the monsoon victims in the Indian subcontinent, the displaced of all the world’s drought-stricken, flood-prone, resource-short, or famine-ravaged nations—all feel the impact of climate change already. Every day. Every season. They have no way to escape it or ignore it.
  
But when the farmers in our Midwest see a new Dust Bowl, we will all feel it. When major cities like New York, Galveston, New Orleans and Miami sink beneath the waves; when L.A., Seattle, Portland and even Atlanta are choked with the smoke of wildfires; when Chicago and Philadelphia and Washington, D.C. are frozen and impassable for weeks at a time, we may decide something should be done.

Then it may well be too late.

Cheers, Donna

*Information provided from: “Climate Change Is Accelerating, Bringing World ‘Dangerously Close’ to Irreversible Change,” by Henry Fountain, The New York Times, December 4, 2019.

**Information provided from: “A Grave Climate Warning, Buried on Black Friday,” by Robinson Meyer, The Atlantic, November 23, 2018.

***Information provided from: The Uninhabitable Earth: Life After Warming, by David Wallace-Wells, Tim Duggan Books, New York, 2019.

Friday, November 30, 2018

CLIMATE CHANGE REPORTS CONFIRM WHAT WE SEE OUT THE WINDOW


CA wildfires: global warming at its worst. (ABC News)

Wildfires in California, Greece, Sweden. Floods in Pennsylvania, India, England. Hurricanes in Florida and North Carolina; typhoons in Japan and the Philippines. Droughts in Australia, South America, Africa. Extremes of temperature, well, everywhere. Ocean temperatures rising. Ice caps melting. Islands disappearing.

A plot for a dystopian novel of the future? No. Just a status report on the world’s climate. Something you could read in detail in the just-released Fourth National Climate Assessment, just released from, of all places, the U.S. White House. (The report is required by Congress every four years.) This year’s report was released the day after Thanksgiving (Black Friday), but its conclusions were so startling it made news even in the midst of the post-holiday shopping frenzy.

If you needed support for those conclusions you could find them in the latest State of the Climate 2018 report from the World Meteorological Organization. The WMO report declares the last four years have been the hottest on record for the planet.

The National Climate Assessment is based on the work of scientists and analysts across 13 agencies throughout the U.S. government and focuses on the impact of climate on the U.S. alone. The WMO collects data from countries and remote locations around the world to provide a global perspective. Both scientific reports describe the devastation, in both financial and human terms, of the many climate-related events that are already occurring. Both reports lay the blame for the global rise in temperatures on the activity of humans—the generation of greenhouse gases, deforestation, pollution. And both warn of dire consequences if nothing is done to change that human behavior.

Because the World Meteorological Organization has more freedom to speak, its conclusions are blunter. Action must be taken now to reduce greenhouse gases (ie. to reduce the dependence on fossil fuels that produce them) or the planet faces possibly irreversible damage—inundation of vulnerable coastlines, famines, disruption of world economics and displacement of human populations.

“Every bit matters,” said Elena Manaenkova, the WMO deputy secretary general. “Every fraction of a degree of warming makes a difference to human health and access to food and fresh water, to the extinction of animals and plants, to the survival of coral reefs and marine life.”

The WMO report says we have no more than 12 years to make major changes before it will be too late to avoid disaster. Consider: it has taken us since the dawn of the Industrial Age to reach this point of no return, some 250 years. As Petteri Taalas, the secretary general of the WMO, a leading authority on climate change, says: “We are the first generation to fully understand climate change and the last generation to be able to do something about it.”

Reversing direction on our excesses will take time, even if we all agree and start now with the best of will. That, however, is saying a lot.

*Warning: Political Opinion Ahead*

It is less a political statement than an observable fact to say that our current governmental leadership in the U.S. is willfully blind to scientific fact on the subject of climate change. The President has no scientists of note in his Cabinet to advise him in this area; instead, he relies on businessmen from fossil-fuel energy industries to set our environmental policies and long-term climate change strategies. He admits that he has only read “some” of the Climate Assessment Report and disbelieves its conclusions.

Sacrifice now or pay the consequences later.
You could say that’s a natural optimist talking. I have another word for it. But when I was a youngster, my mama told me the story of a lazy grasshopper and a bunch of industrious ants with winter coming. I don’t think that story applies just to a change of seasons. It might just apply to a change of climate, too. I’m thinking the ants have the right idea--prepare for the snow even while the sun shines.

Cheers, Donna

Information for this post provided from:
Past four years hottest on record, data shows,” by Fiona Harvey, The Guardian, November 29, 2018.

“New U.S. Climate Assessment Forecasts Dire Effects On Economy, Health,” by Jennifer Ludden and Christopher Joyce, NPR, November 26, 2018.