Archives May 2021

Carbon dioxide levels are now higher than at anytime in the past 3.6 million years. Levels of the two most important anthropogenic greenhouse gases, carbon dioxide and methane, continued their unrelenting rise in 2020 despite the economic slowdown caused by the coronavirus pandemic response, NOAA announced today. The global surface average for carbon dioxide (CO2), calculated from measurements collected at NOAA’s remote sampling locations, was 412.5 parts per million (ppm) in 2020, rising by 2.6 ppm during the year. The global rate of increase was the fifth-highest in NOAA’s 63-year record, following 1987, 1998, 2015 and 2016. The annual mean at NOAA’s Mauna Loa Observatory in Hawaii was 414.4 ppm during 2020.

The economic recession was estimated to have reduced carbon emissions by about 7 percent during 2020. Without the economic slowdown, the 2020 increase would have been the highest on record, according to Pieter Tans, senior scientist at NOAA’s Global Monitoring Laboratory. Since 2000, the global CO2 average has grown by 43.5 ppm, an increase of 12 percent.

The atmospheric burden of CO2 is now comparable to where it was during the Mid-Pliocene Warm Period around 3.6 million years ago, when concentrations of carbon dioxide ranged from about 380 to 450 parts per million. During that time sea level was about 78 feet higher than today, the average temperature was 7 degrees Fahrenheit higher than in pre-industrial times, and studies indicate large forests occupied areas of the Arctic that are now tundra.

Also: https://www.cbsnews.com/news/climate-change-carbon-dioxide-highest-level-million-years/

Lawyers will allege that TikTok takes children’s personal information, including phone numbers, videos, exact location and biometric data, without sufficient warning, transparency or the necessary consent required by law, and without children or parents knowing what is being done with that information. TikTok has more than 800 million users worldwide and parent firm ByteDance made billions in profits last year, with the vast majority of that coming via advertising revenue.

The Biden administration is considering using outside firms to track extremist chatter by Americans online, an effort that would expand the government’s ability to gather intelligence but could draw criticism over surveillance of US citizens. The Department of Homeland Security is limited in how it can monitor citizens online without justification and is banned from activities like assuming false identities to gain access to private messaging apps used by extremist groups such as the Proud Boys or Oath Keepers. Instead, federal authorities can only browse through unprotected information on social media sites like Twitter and Facebook and other open online platforms. A source familiar with the effort said it is not about decrypting data but rather using outside entities who can legally access these private groups to gather large amounts of information that could help DHS identify key narratives as they emerge. The plan being discussed inside DHS, according to multiple sources, would, in effect, allow the department to circumvent those limits.
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Even as the DHS eyes a more robust use of its intelligence authorities, it continues to face fierce scrutiny on Capitol Hill over its handling of the Portland protests last summer — raising the possibility that at least some lawmakers will push back on the effort. The department — then led by Trump appointees but staffed by career officials, some of whom remain on the job — collected and disseminated open source reports on U.S. journalists who were publicly reporting on the protests.

Samsung executives said the company’s semiconductor business saw profits fall in the first quarter, mainly due to disruptions and product losses caused by the shutdown. Samsung’s Austin fab was offline for more than a month after it was shut down due to power outages during the freeze… About 71,000 wafers were affected by production disruptions, said Han Jinman, executive vice-president of Samsung’s memory chip business. He estimated the wafer loss is equivalent to $268 million to $357 million.

Semiconductor fabs are typically operational 24 hours a day for years on end. Each batch of wafers — a thin slice of semiconductor used for the fabrication of integrated circuits — can take 45 to 60 days to make, so a shutdown of any length can mean a loss of weeks of work. Restoring a fab is also a complicated process, and even in the best of circumstances can take a week… NXP Semiconductors was also among the facilities that were shut down in February, as its two Austin fabrication facilities were offline for nearly a month. In March, the company estimated the shutdown would result in a $100 million loss in revenue and a month of wafer production…

Jinman said Samsung is working with the state, municipal government and local utility companies to find solutions to prevent similar shutdowns in the future.

Corporate filings in Luxembourg revealed that the company collected record sales income of €44bn (£38bn) in Europe last year but did not have to pay any corporation tax to the Grand Duchy.

Accounts for Amazon EU Sarl, through which it sells products to hundreds of millions of households in the UK and across Europe, show that despite collecting record income, the Luxembourg unit made a €1.2bn loss and therefore paid no tax.

In fact the unit was granted €56m in tax credits it can use to offset any future tax bills should it turn a profit. The company has €2.7bn worth of carried forward losses stored up, which can be used against any tax payable on future profits.

“Amazon’s revenues have soared under the pandemic while our high streets struggle, yet it continues to shift its profits to tax havens like Luxembourg to avoid paying its fair share of tax. These big digital companies all rely on our public services, our infrastructure…

The massive melting of glaciers as a result of global heating has caused marked shifts in the Earth’s axis of rotation since the 1990s, research has shown. It demonstrates the profound impact humans are having on the planet, scientists said.

The planet’s geographic north and south poles are the point where its axis of rotation intersects the surface, but they are not fixed. Changes in how the Earth’s mass is distributed around the planet cause the axis, and therefore the poles, to move.

In the past, only natural factors such as ocean currents and the convection of hot rock in the deep Earth contributed to the drifting position of the poles. But the new research shows that since the 1990s, the loss of hundreds of billions of tonnes of ice a year into the oceans resulting from the climate crisis has caused the poles to move in new directions.

The scientists found the direction of polar drift shifted from southward to eastward in 1995 and that the average speed of drift from 1995 to 2020 was 17 times faster than from 1981 to 1995.

Since 1980, the position of the poles has moved about 4 metres in distance.

“The accelerated decline [in water stored on land] resulting from glacial ice melting is the main driver of the rapid polar drift after the 1990s,” concluded the team, led by Shanshan Deng, from the Institute of Geographic Sciences and Natural Resources Research at the Chinese Academy of Sciences.

Gravity data from the Grace satellite, launched in 2002, had been used to link glacial melting to movements of the pole in 2005 and 2012, both following increases in ice losses. But Deng’s research breaks new ground by extending the link to before the satellite’s launch, showing human activities have been shifting the poles since the 1990s, almost three decades ago.

The research, published in the journal Geophysical Research Letters, showed glacial losses accounted for most of the shift, but it is likely that the pumping up of groundwater also contributed to the movements.

Groundwater is stored under land but, once pumped up for drinking or agriculture, most eventually flows to sea, redistributing its weight around the world. In the past 50 years, humanity has removed 18tn tonnes of water from deep underground reservoirs without it being replaced.

Vincent Humphrey, at the University of Zurich, Switzerland, and not involved in the new research said it showed how human activities have redistributed huge amounts of water around the planet: “It tells you how strong this mass change is – it’s so big that it can change the axis of the Earth.” However, the movement of the Earth’s axis is not large enough to affect daily life, he said: it could change the length of a day, but only by milliseconds.

Prof Jonathan Overpeck, at the University of Arizona, US, told the Guardian previously that changes to the Earth’s axis highlighted “how real and profoundly large an impact humans are having on the planet”.

Some scientists argue that the scale of this impact means a new geological epoch – the Anthropocene – needs to be declared. Since the mid-20th century, there has been a marked acceleration of carbon dioxide emissions and sea level rise, the destruction of wildlife and the transformation of land by farming, deforestation and development.

Glaciers are melting faster, losing 31 percent more snow and ice per year than they did 15 years earlier, according to three-dimensional satellite measurements of all the world’s mountain glaciers.

Scientists blame human-caused climate change.

Using 20 years of recently declassified satellite data, scientists calculated that the world’s 220,000 mountain glaciers are losing more than 328 billion tons (298 billion metric tons) of ice and snow per year since 2015, according to a study in Wednesday’s journal Nature. That’s enough melt flowing into the world’s rising oceans to put Switzerland under almost 24 feet (7.2 meters) of water each year.

Half the world’s glacial loss is coming from the United States and Canada.

Almost all the world’s glaciers are melting, even ones in Tibet that used to be stable, the study found. Except for a few in Iceland and Scandinavia that are fed by increased precipitation, the melt rates are accelerating around the world.