Category Archives: Education

learning in America

The longest Lasting Civilizations

(that we know about)

The Maya civilization existed in Central America and the Yucatán Peninsula since at least 1800 B.C. and flourished for thousands of yearsThe Classic period of Mayan culture lasted from 250 A.D. to around 900 A.D. The civilization consisted of more than 40 cities, each with a population between 5,000 and 50,000. The Maya civilization collapsed between A.D. 800 and 1000The Maya were conquered and destroyed by the Spanish invaders in around 1600 A.D. The Maya civilization was never unified and consisted of numerous small states, each centered on a city ruled by a king. Egypt was taken over by Alexanda circa 325 BC so their documented civilization lasted for less than 2,200 years while the Mayans lasted 3,400 yrs!  The Incas seem to receive much attention but their civilization lasted less than 200 years. While they are credited with much it seems to me that they likely inherited most of the amazing developments from earlier civilizations. 

Mother Earth

Mother Earth

Key UN reports warn urgent and collective action needed – as oil firms report astronomical profits

By Damian Carrington Environment editor    Thu 27 Oct 2022 13.37 EDT

After a slew of major reports laid bare how close the planet is to catastrophe, the climate crisis has reached a “really bleak moment”, one of the world’s leading climate scientists has said.

The world’s nations need collective action more now than at any point since the Second World War to avoid climate tipping points, Prof Johan Rockström said, but geopolitical tensions are at a high.

He said the world was coming “very, very close to irreversible changes … time is running out very fast”.

Emissions must fall by about half by 2030 to meet the internationally agreed target of 1.5C of heating but are still rising, the reports showed – at a time when oil giants are making astronomical amounts of money.

On Thursday, Shell and TotalEnergies both doubled their quarterly profits to about $10bn. Oil and gas giants have enjoyed soaring profits as post-Covid demand jumps and after Russia’s invasion of Ukraine. The sector is expected to amass $4tn in 2022, strengthening calls for heavy windfall taxes to address the cost of living crisis and fund the clean energy transition.

All three of the key UN agencies have produced damning reports in the last two days. The UN Environment Agency’s report found there was “no credible pathway to 1.5C in place” and that “woefully inadequate” progress on cutting carbon emissions means the only way to limit the worst impacts of the climate crisis is a “rapid transformation of societies”.

Current pledges for action by 2030, even if delivered in full, would mean a rise in global heating of about 2.5C, a level that would condemn the world to catastrophic climate breakdown, according to the UN’s climate agency. Only a handful of countries have ramped up their plans in the last year, despite having promised to do so at the Cop26 UN climate summit in Glasgow last November.

The UN’s meteorological agency reported that all the main heating gases hit record highs in 2021, with an alarming surge in emissions of methane, a potent greenhouse gas.

Separately, the IEA’s World Energy report offered a glimmer of progress, that CO2 from fossil fuels could peak by 2025 as high energy prices push nations towards clean energy, though it warned that it would not be enough to avoid severe climate impacts.

Rockström, director of the Potsdam Institute for Climate Impact Research in Germany, said: “It’s a really bleak moment, not only because of the reports showing that emissions are still rising, so we’re not delivering on either the Paris or Glasgow climate agreements, but we also have so much scientific evidence that we are very, very close to irreversible changes – we’re coming closer to tipping points.”

Research by Rockström and colleagues, published in September, found five dangerous climate tipping points may already have been passed due to the global heating caused by humanity to date, including the collapse of Greenland’s ice cap, with another five possible with 1.5C of heating.

“Furthermore, the world is unfortunately in a geopolitically unstable state,” said Rockström. “So when we need collective action at the global level, probably more than ever since the Second World War, to keep the planet stable, we have an all-time low in terms of our ability to collectively act together.”

“Time is really running out very, very fast,” he said. “I must say, in my professional life as a climate scientist, this is a low point. The window for 1.5C is shutting as I speak, so it’s really tough.”

His remarks came after the UN secretary general, António Guterres, said on Wednesday that climate action was “falling pitifully short”. “We are headed for a global catastrophe [and] for economy-destroying levels of global heating.”

He added: “Droughts, floods, storms and wildfires are devastating lives and livelihoods across the globe [and] getting worse by the day. We need climate action on all fronts and we need it now.” He said the G20 nations, responsible for 80% of emissions, must lead the way.

Inger Andersen, head of the UN environment program (UNEP), told the Guardian that the energy crisis must be used to speed up the delivery of a low-carbon economy: “We are in danger of missing the opportunity and a crisis is a terrible thing to waste.”

Prof Corinne Le Quéré, at the University of East Anglia, UK, said: “It is fundamental to avoid cascading risks that responses to existing crises are made in a way that limits climate change to the lowest possible level.”

Further reports published in the last two days said the health of the world’s people is at the mercy of a global addiction to fossil fuels, with increasing heat deaths, hunger and infectious disease as the climate crisis intensifies.

In the UK, the government was accused of a “severe dereliction of duty” in leaving critical UK infrastructure at risk to climate impacts. The new prime minister, Rishi Sunak, will not attend COP27, his spokesman said on Wednesday.

High gas and oil prices delivered huge profits to Shell and TotalEnergies on Wednesday, which booked $9.5bn and $9.9bn respectively. Shell said it would not pay any UK-imposed windfall tax this year as the profits were being offset against investment in North Sea fields.

The fossil fuel industry as a whole amassed $4tn in 2022, according to another new report from the International Energy Agency (IEA), a sum that could otherwise transform climate action.

The IEA report said: “Net income for the world’s oil and gas producers is set to double in 2022 to an unprecedented $4tn, a huge $2tn windfall.” The oil and gas sector has gained an average of $1tn a year in unearned profits for the last 50 years.

The IEA said clean energy investment would have to be at least $4tn a year by 2030 to hit net zero emissions by mid-century. “If the global oil and gas industry were to invest this [$2tn] additional income in low‐emissions fuels, such as hydrogen and biofuels, it would fund all of the investment needed in these fuels for the remainder of this decade.”

Prof Myles Allen, at the University of Oxford, said: “The combined profits, taxes, and royalties generated by the oil and gas industry over the past few months would be enough to capture every single molecule of CO2 produced by their activities and reinject it back underground. So why are we only talking about transforming society and not about obliging a highly profitable industry to clean up the mess caused by the products it sells?”

“The situation is serious and bleak,” said Prof Simon Lewis, at University College London. “Shell has made £26bn profit this year, carbon emissions are back at pre-pandemic levels, while 53,000 people died of heat stress in Europe in the summer, and floods have displaced millions from Nigeria to Pakistan. The solution is to do everything we can to defeat the fossil fuel industry – they stand between us all and a prosperous future.”

Rockström was pessimistic about any breakthrough in the speed of climate action at the Cop27 climate summit, which he said would be dominated by nations such as Pakistan demanding funding to rebuild their countries after climate disasters. Rich, high-emitting nations have long rejected such claims, fearing unlimited liabilities.

“This is a necessary discussion,” Rockström said. “But it leads to a deeper rift between the global north and the south. And that’s exactly what we do not need now.”

‘Like something you watch in a movie’: climate crisis intensifies with catastrophic floods.

But he said progress could be made within a few years: “The Ukraine war is the nail in the coffin for the fossil-fuel-driven advanced economies. In the short term, it costs us a lot and we lose speed on climate action.” But in the longer term, he said, the energy and food crises add national security to the planetary and health reasons for climate action.

Prof Michael Mann, at the University of Pennsylvania in the US, said it was important to note that progress was being made: “More work needs to be done if warming is to be kept below 1.5C, but nobody foresaw the major policy progress in recent months in both Australia and the US. It is estimated that the US legislation will lower national emissions by 40% this decade. With US leadership, we can expect other major emitters to now come to the table at Cop27.”

Climate experts agree that every action that limits global heating reduces the suffering endured by people from climate impacts. “The 1.5C target is now near impossible, but every fraction of a degree will equate to massive avoided damages for generations to come,” said Prof Dave Reay, at the University of Edinburgh, UK.

Röckstrom said: “Even though the situation is depressing and very challenging, I would strongly advise everyone to act in business or policy or society or science. The deeper we fall into the dark abyss of risk, the more we have to make efforts to climb out of that hole. It’s not as if we don’t know what to do – it’s rather that we’re not doing what is necessary.”

For a bit more on this from Noam Chomsky: Policies promoting climate change are ‘a resolute march toward suicide’ https://www.alternet.org/2022/10/chomsky/

Long Life fast charging EV Battery

New battery technology could speed up the time it takes to charge electric vehicles, scientists say. Sodium-ion batteries have emerged as a possible replacement for the current lithium-ion batteries on the market.

Scientists have developed a new coin-shaped sodium-ion battery with higher capacity and rapid charging rates, and the technology apparently has the potential to power anything from phones to cars.

Currently, it can take anywhere from 20 minutes to more than an hour to charge an electric vehicle in the US. The new batteries could charge EVs in seconds.

Sodium-ion is more widely available and cheaper than lithium, but it weighs three time as much.

The Swedish manufacturer Northvolt announced a breakthrough in the development of sodium-ion batteries earlier this year. The potential of sodium-ion was known, but the batteries on the market had a lower lower power output and storage capacity.

In a study published in the journal Energy Storage Materials, researchers from the Korea Advanced Institute of Science and Technology and the Lawrence Berkeley National Laboratory said they had found a way to solve those issues.

In the study, they said that they developed a new framework and improved the battery. They claim that the new battery can achieve an energy storage capacity of 247 watt-hours per kilogram and deliver power at 34,748 watts per kilogram.

US manufacturers are eyeing sodium-ion technology. Natron Energy just started commercial-sale operations at its sodium-ion battery plant in Michigan this week, and battery maker Clarios recently announced a partnership with Swedish company Altiris.

There are over 2.4 million electric vehicles currently registered in the US, with the market share expected to increase by up to 11 percent this year.

Samsung SDI, the Korean giant’s battery biz, promised EV batteries that can charge to 80 percent capacity in a mere nine minutes, plus models that can perform at that level for 20 years.…

The ultra-fast charging battery will enter production in 2026. The long-lived product will start rolling off factory floors in 2029.

Samsung SDI teased the tech in March of this year. At the 37th Electric Vehicle Symposium & Exposition (EVS37) taking place this week in Seoul, it is also displaying an anode-free all-solid-state battery (ASB) with a 900-watt-hour per liter density, which it eyes to start mass-producing in 2027.

Solid-state batteries are considered a significant step up from lithium-ion due to their higher energy density, faster-charging capabilities and perceived safety as ASBs are less likely to catch fire.

Samsung’s already tried to reduce the likelihood its kit catches fire, a live issue as Li-Ion-powered appliances and e-bikes spark domestic blazes that have regulators worried that low-quality products increase risks.

The Korean champ’s approach is to use vents that exhaust heat and gas so that if its batteries are involved in an accident or fire the chances of thermal runaway are reduced.

“New products from the company such as 46-phi batteries [a measure of battery diameter] are also part of the exhibition, along with a cell-to-pack (CTP) concept that increases energy density yet decreases cost,” stated Samsung.

The chaebol’s battery unit pitched the battery advancements as “super-gap” technology that will “pioneer the future global EV market.”

Japanese automaker Toyota has several battery undertakings, including in joint ventures with Panasonic. The company has claimed it is ready to roll out its solid-state-batteries with a range of 745 miles (1200 km) and charge time of 10 minutes by 2025.

https://www.msn.com/en-us/lifestyle/shopping/samsung-shows-off-battery-tech-it-says-will-see-you-gone-in-nine-minutes/ar-AA1nCqrT?ocid=msedgntp&pc=U531&cvid=85a081b430c14398a45dcb8d165768c2&ei=27