Climate Change News & Discussions

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caltrek
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^^^^Dynamite speech. (See bottom of previous page).
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In Brazilian Amazon, savannization and climate change will expose 12 million to lethal heat stress
https://phys.org/news/2021-10-brazilian ... xpose.html
by Fiocruz Piauí

Large-scale deforestation of the Amazon rainforest, combined with climate change, will increase the number of people in northern Brazil who are exposed to extreme heat—with potentially deadly results and devastating economic impacts, according to a groundbreaking study released today by Brazilian researchers in the journal Communications Earth & Environment.

Extreme heat levels, which are physiologically intolerable to the human body, will profoundly affect regions where highly vulnerable populations, including Indigenous Peoples, reside. This is the first study to quantify the combined impacts of rampant forest loss—which would eventually transform the Amazon into a savanna—and climate change on human health and productivity.

According to the study, Deforestation and climate change project increased risk of heat stress in the Brazilian Amazon, there is a deforestation threshold in the Amazon, beyond which human survival is threatened. Crossing this threshold causes an "extreme health effect," which by 2100 could expose approximately 12 million people living in the northern states of Pará and Amazonas in Brazil to extreme risk of heat stress.

"Extreme heat conditions induced by deforestation may have significant and long-lasting adverse effects on human health. If deforestation continues at its current rate, the effects for our civilization will be dramatic," said report co-author Paulo Nobre, senior researcher at Brazil's National Institute for Space Research (INPE). "In addition to impacts on human health and survival, these findings have serious economic implications far beyond crop damage." Paulo Nobre wrote the report with Beatriz Alves de Oliveira, Marcus Bottino, and Carlos Nobre.
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caltrek
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Apple and Disney Among Companies Backing Groups Against U.S. Climate Bill
by Oliver Milman
October 1, 2021

https://www.theguardian.com/us-news/202 ... l-analysis

Introduction:
(The Guardian) Some of America’s most prominent companies, including Apple, Amazon, Microsoft and Disney, are backing business groups that are fighting landmark climate legislation, despite their own promises to combat the climate crisis, a new analysis has found.

A clutch of corporate lobby groups and organizations have mobilized to oppose the proposed $3.5tn budget bill put forward by Democrats, which contains unprecedented measures to drive down planet-heating gases. The reconciliation bill has been called the “the most significant climate action in our country’s history” by Chuck Schumer, the Democratic leader in the US Senate.

Most large US corporations have expressed concern over the climate crisis or announced their own goals to cut greenhouse gases. Jeff Bezos, one of the world’s richest people, has said that the climate crisis is the “biggest threat to our planet” and the company he founded, Amazon, has created a pledge for businesses to cut their emissions to net zero by 2040. Microsoft has promised to be “carbon negative” within a decade from now and Disney is aiming to use only renewable-sourced electricity within the same timeframe.

But these leading companies, and others, either support or actively steer the very lobby groups that are attempting to sink the bill that carries the weight of Joe Biden’s ambitions to tackle the climate crisis, threatening one of the last major legislative efforts that will help decide whether parts of the world plunge into a new, barely livable climatic state.

“Major corporations love to tell us how committed they are to addressing the climate crisis and building a sustainable future, but behind closed doors, they are funding the very industry trade groups that are fighting tooth and nail to stop the biggest climate change bill ever,” said Kyle Herrig, president of watchdog group Accountable.US, which compiled the analysis.
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https://www.architecturaldigest.com/sto ... d-turbines
New York City is making a big investment in renewable energy that will literally change the city’s landscape.

Last week, Mayor Bill de Blasio announced plans for a $191 million investment in offshore wind turbines that will help the city reach a goal of 100% clean electricity production by 2030 and reaching full carbon neutrality by 2050. Developed in collaboration with the New York City Economic Development Corporation, the Offshore Wind Vision plan promises to reduce 34.5 million tons of carbon dioxide, the equivalent of removing 500,000 cars from Manhattan streets, while generating 13,000 jobs and $1.3 billion in average annual investments.

“The climate crisis is real,” De Blasio said in a release. “New York City will serve as the model for taking climate action and growing the offshore wind industry with a real long-term vision plan focused on equity. We have the opportunity now to deliver on promises and set the city on a path towards a sustainable future.”
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Climate change may already impact majority of humanity: study
Researchers found some 100,000 papers that potentially documented evidence of climate change's effects.

The effects of climate change could already be impacting 85 percent of the world's population, an analysis of tens of thousands of scientific studies said Monday.

A team of researchers used machine learning to comb through vast troves of research published between 1951 and 2018 and found some 100,000 papers that potentially documented evidence of climate change's effects on the Earth's systems.

"We have overwhelming evidence that climate change is affecting all continents, all systems," study author Max Callaghan told AFP in an interview.

He added there was a "huge amount of evidence" showing the ways in which these impacts are being felt.

The researchers taught a computer to identify climate-relevant studies, generating a list of papers on topics from disrupted butterfly migration to heat-related human deaths to forestry cover changes.
https://phys.org/news/2021-10-climate-i ... anity.html
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caltrek
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Artificial Intelligence Analysis of 100,000 Climate Studies Reveals How Massive The Crisis Already Is
by Peter Dockrill
October 11, 2021

https://www.sciencealert.com/giant-ai-a ... already-is

Introduction:
(Science Alert) Some problems are so big, you can't really see them.

Climate change is the perfect example. The basics are simple: the climate is heating up due to fossil fuel use. But the nitty gritty is so vast and complicated that our understanding of it is always evolving. Evolving so rapidly, in fact, that it's basically impossible for humans to keep up.

"Since the first assessment report (AR) of the Intergovernmental Panel on Climate Change (IPCC) in 1990, we estimate that the number of studies relevant to observed climate impacts published per year has increased by more than two orders of magnitude," scientists explain in a new paper, led by first author and quantitative data researcher Max Callaghan from the Mercator Research Institute on Global Commons and Climate Change (MCC) in Germany.

"This exponential growth in peer-reviewed scientific publications on climate change is already pushing manual expert assessments to their limits."

This struggle is its own problem, of course, because how can humans ever grasp the problem of climate change, if the size of the problem defies our ability to objectively analyze it, measure it, and understand it?
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caltrek
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Toxic Algae Blooms Are Multiplying
by Zoya Teirstein
October 14, 2021

https://grist.org/politics/toxic-algae- ... n-to-help/

Extract:
(Grist) Most of the air we breathe comes from algae and other aquatic organisms that have been photosynthesizing sunlight into oxygen for a billion years. But not all algae are life-giving. Blue-green algae contain a powerful class of toxins called cyanotoxins. When these algae form blooms — rapid accumulations of algae in fresh or marine water — they can damage ecosystems and cause vomiting, fever, headache, neurological problems, and even death in humans and animals.

These poisonous organisms have been cropping up a lot lately. Beaver Lake in Asheville, North Carolina, was closed last week after local officials found toxic algae in the water. Three dogs died from playing on a beach suspected to be contaminated with toxic algae on the Columbia River in Washington state last month. In California, the Bureau of Land Management closed a 28-mile stretch along the Merced River after water samples south of where a family of hikers mysteriously died in August showed high levels of toxic algae. These types of incidents are not rare. A new study from the Centers for Disease Control and Prevention estimates that toxic algae sent more than 300 Americans to the emergency room between 2017 and 2019.

…Algal blooms are sparked by nutrients, an umbrella term for the chemical elements phosphorus and nitrogen, which are often used by farmers to fertilize their fields…chemically treated water from wastewater plants and water from storm drains containing a cocktail of urban pollution. Atmospheric pollution from fossil fuel plants and cars can seed algal blooms, too.

Climate change also fuels blooms, albeit more indirectly. Research shows that algae thrive in bodies of water warmed by climate change. And erratic weather like intense tropical storms and extreme rainfall, byproducts of a warming planet, serve as catalysts for new blooms by helping nutrients leach into bodies of water and moving algae around. Blue-green algae, also known as cyanobacteria, particularly like it when heavy rain is followed by a big drought — a pattern that’s becoming more common with climate change — because the rain pushes algae downstream into new areas and then drought forces that water and the algae in it to stagnate, which then allows the algae to proliferate unchecked.
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Manchin again.

You still a fan of this guy, Caltrek?

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