The research station, at an elevation of 11,135 feet on the summit of a picturesque volcano, has been monitoring the weather and chemistry of the atmosphere continuously since the 1950s. #ClimateAction
When the station began collecting CO2 measurements in the late 1950s, atmospheric CO2 concentration sat at around 315 parts per million. #ClimateAction
On Saturday, the daily average was pegged at 421.21 parts per million — the first time in human history that number has been so high. Previously, it had never exceeded 420 parts per million.#ClimateAction
Carbon dioxide emissions are a product of electricity production, transportation and industry. The United States alone emits more than 5 billion metric tons of CO2 annually — the weight of 13.2 million fully loaded Boeing 747s, or roughly 68,000 Washington Monuments.
About half of emitted CO2 remains in the atmosphere and induces warming, while more than a quarter is absorbed into the oceans, where it acidifies the water and disrupts marine ecosystems.#ClimateAction
There is special significance in reaching and surpassing a concentration of 416 parts per million. It means we’ve passed the midpoint between preindustrial CO2 levels, around 278 parts per million, and a doubling of that figure, or 556 parts per million.#ClimateAction
What a doubling of CO2 means

The anticipated doubling of atmospheric CO2, which is likely by the year 2060, has been connected to a predicted three-degree or greater warming of the planet.
A study released last year found that doubling CO2 levels will probably lead to a temperature rise between 4.1 and 8.1 degrees Fahrenheit (2.3 and 4.5 degrees Celsius), ruling out more modest warming scenarios.
Data obtained from glacial ice cores indicates that modern-day CO2 levels are higher than at any point in at least the past 800,000…
Methane, also a significant driver of the warming climate, has shown a “huge and unprecedented increase” too, wrote the British Antarctic Survey. Agriculture, specifically the raising of livestock and manure management, is a primary source of methane in the United States,
followed by petroleum and natural gas production, as well as coal mining and…

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More from @MesMitch

8 Apr
In a secretive military facility in southwest China, a supercomputer whirs away, simulating the heat and drag on hypersonic vehicles speeding through the atmosphere — missiles that could one day be aimed at a U.S. aircraft carrier or Taiwan, according to former U.S. officials
The computer is powered by tiny chips designed by a Chinese firm called Phytium Technology using American software and built in the world’s most advanced chip factory in Taiwan, which hums with American precision machinery, say the analysts.
Phytium portrays itself as a commercial company aspiring to become a global chip giant like Intel. It does not publicize its connections to the research arms of the People’s Liberation Army.
Read 6 tweets
8 Apr
Genetic sequencing dating back 45,000 years shows intermixing with Neanderthals more common than previously thought
The research is based on analysis of several ancient human remains – including a whole tooth and bone fragments – found in a cave in Bulgaria last year.
Genetic sequencing found the remains came from individuals who were more closely linked to present-day populations in east Asia and the Americas than populations in Europe.
Read 4 tweets
7 Apr
Research: 'brain disease' was seen in one in three people with severe Covid
A comprehensive study of the long-term effects of Covid-19 found that six of 34 percent of those with severe illness experienced psychiatric or neurological problems.

The prominent results of the study, which examined the electronic health data of 236 thousand 379 people and published in the respected medical journal Lancet Psychiatry, are as follows:
* 34 percent of patients with severe Covid experienced psychiatric or neurological problems within six months;

* The most common problem was anxiety. It was found that 17 percent of the participants experienced anxiety;
Read 6 tweets
5 Apr
The health-care industry doesn’t want to talk about this single word “Racism“…
The covid-19 pandemic has laid bare the racial inequities of the U.S. health-care system. Too many health-care executives still perpetuate the ahistoric perspective that our country’s model provides safe and equal care for all.
Yet the disproportionate number of deaths to covid-19 among racial and ethnic minority groups exposes the systemic and lethal barriers to care.
Read 7 tweets
4 Apr
O gün bugündür şefkat dolu İstepan, Malena'yla adeta sembiyoza geçerek ona bakıyor, hayatının büyük bir kısmını sahiplendiği leylekle paylaşıyor, hatta Malena'nın yavrularının büyütülmesinde adeta ebeveyn rolüne bürünüyor.
Ne de olsa Malena'nın yıllar boyunca her yaz ziyaretine gelmiş olan Klepetan, ona sadık bir eş olarak çiftleşme görevini muntazaman yerine getirmiş...
Bu arada babacan tavırlı İstepan yalnız yaşadığı Brodski Varoš köyünde değil, çevresindeki coğrafyada, tüm ülkede, hatta gezegen çapında "Leylekadam" lakabıyla tanınıp gayet meşhur bir insan haline gelmiş.
Read 17 tweets
4 Apr
A report released by the U.S. State Department has listed arbitrary killings, suspicious deaths of persons in custody, forced disappearances, torture, arbitrary arrest, interference with the judiciary, and violence against women and the LGBTI community
“The government took limited steps to investigate, prosecute, and punish members of the security forces and other officials accused of human rights abuses; impunity remained a problem,” said the report.
Several domestic and international rights groups reported police officers, prison authorities, and military and intelligence units having tortured people under custody, the report said.
Read 10 tweets

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