Explaining his decision, Elon Musk expressed concern that “the use of fossil fuels for Bitcoin mining is rapidly increasing.” Elon Musk has just announced, Tesla will “pause buying cars with Bitcoin”, because of concerns that the use of fossil fuels to mine Bitcoin is increasing rapidly. (Photo: Canva) “Tesla has stopped accepting car purchases with Bitcoin. We are concerned about the rapidly increasing use of fossil fuels for Bitcoin mining and trading, especially coal. Cryptocurrency is a good idea on many levels and we believe it has a promising future, but that cannot come at a cost to the environment. Tesla will not sell any Bitcoin and we plan to use it for transactions as soon as we transition mining to more sustainable energy,” Elon Musk wrote on Twitter. The recent announcement of billionaire Elon Musk on Twitter. (Screenshots) After Elon Musk’s announcement, the cryptocurrency market quickly “red” when the price of Bitcoin plunged below the $50,000 mark, losing more than 12% in the last 24 hours. Bitcoin price this morning, this coin previously dropped below $47,000 after Elon Musk’s announcement. (Photo: CoinMarketCap) Elon Musk’s decision is completely opposite to what this billionaire has previously stated. In early February, Tesla announced that it had spent $1.5 billion to buy Bitcoin, as well as saying that it could invest in a number of other digital currencies in the future. (Photo: Daniel Oberhaus (2018) / Protocol) In addition, Tesla also announced that it will soon let users use Bitcoin to buy its cars. By the end of March, Elon Musk announced that users in the US could buy Tesla cars with Bitcoin.

Factory DAC. After 2050, we still have to double our efficiency. Currently, the fastest and most powerful solution is CO2 extraction by DAC method. For one thing, it takes 30,000 large-capacity DAC (Direct Air Capture) plants, estimated to cost $ 15,000 billion. Direct CO2 filter Since the Paris Agreement was signed in 2015, the world has made many efforts to reduce CO2. The most popular solution is afforestation, but this way of “green” still has many potential risks. First, afforestation takes space and time. It requires a large investment, likely to push food prices five times higher. Second, even when the Earth is completely green, forests will only absorb 30% of the annual emissions that need to be treated. Third, the plant itself is the “receptor for CO2”. If not handled properly upon death, they will turn out to be harmful to humans. “Humanity needs a faster, more drastic solution”, Steve Oldham (USA) affirmed. He introduced the initiative of Carbon Engineering Company: DAC Factory, removed CO2 by the method of direct air capture (DAC). The DAC method was invented in 1999. It operates on the principle of absorbing air, leading to an alkaline environment, isolating and compressing to preserve CO2. The experimental DAC plant was built in Squamish, British Columbia, Canada. It is installed with a series of giant fan tubes on the roof, sucking in ambient air. Currently, CO2 makes up about 0.04% of the air. Carbon Engineering fan duct connected to a filtration system consists of 3 chambers. The first chamber contains alkali potassium hydroxide (KOH) solution. When the air passes through, the KOH reacts with CO2, forming potassium bicarbonate (KHCO3). The KHCO3 formed is led to a second chamber containing calcium hydroxide (Ca (OH) ₂). It reacts, forming limestone and being expelled into the third chamber. In the third chamber, the heated limestone decomposes, creating pure CO2. The DAC recycles the catalyst residue, forming a closed and repeating loop. It captures CO2 without releasing waste. “We are miserable with climate change and the cause of it is excess CO2” – Oldham said – “But with the DAC plant, you can purify this emissions anywhere and anywhere. when”. Cost “huge” CO2 can be commercialized by selling it to agriculture. The world is emitting about 36 billion tons of CO2 / year. “To avoid the risk of global warming, we need to successfully remove 10 billion tons of CO2 / year”, ecologist Jane Zelikova (Ukraine) said. To remove 10 billion tons of CO2 / year, a widespread DAC system is needed, with a total of 30,000 factories. Each year, these three thousand plants require 4 million tons of KOH. They also need a huge amount of energy to operate, estimated to account for up to one-sixth of total global energy. The cost of building a DAC factory is 500 million USD. With 30,000 factories, mankind has to spend 15,000 billion USD. “We need to filter 800 billion tons of CO2 out of the atmosphere,” Oldham said. Recently, many philanthropists and large corporations have expressed their support for DAC. Billionaire and philanthropist Elon Musk (South African American) pledges $ 100 million to develop CO2 capture technology by this method. Microsoft, United Airlines, ExxonMobil … also enthusiastically invested billions of dollars. Until now, estimates of the cost of capturing CO2 in the air have been very expensive. It ranges from 100 to 1,000 USD / ton. Oldham believes that the DAC industry will help lower it to only 94 USD / ton. Big bet Mankind sees CO2 as an enemy, wanting to be wiped out from the atmosphere. Did you know that in the business sector, compressed CO2 is still a valuable commodity? In Switzerland, Climeworks (a CO2 capture center) is compressing CO2 with an efficiency of 900 tons / year. They sell it to greenhouses that increase crop yields. Unfortunately, the most potential customer of compressed CO2 is the fossil fuel industry – the most terrible CO2 emission sector. Petroleum is a finite source of energy, but can be renewable by adding CO2. Occidental Petroleum Company in Texas signed a contract with Carbon Engineering to build a large-scale DAC plant. They aim to filter and utilize 50 million tons of CO2 / year, used for the purpose of increasing oil regeneration. Naturally, this amount of CO2 will be re-emitted in the new oil. It makes efforts to remove CO2 “evenly”. “We must admit, DAC is an expensive solution”, businessman and writer Chris Goodall (UK) said. The problem is that humanity urgently needs to deal with its excess CO2. If we are late, we could pay a heavy price. Losses caused by natural disasters from climate change are extremely severe. It is even able to exceed the amount of money spent operating DACs by many times. The more you hesitate and delay, the more CO2 increase cannot be controlled. The role of DAC is to control emissions. For tomorrow, mankind may have to accept today’s costly. In the event of failure to do business, Iceland proposes mineralization. They succeeded by mixing CO2 into water, pumping down basalt layers in the ground 500 – 600m deep. After about 2 years, CO2 self-changes into calcite (limestone). Waiting time for mineralization, CO2 mixed in water. CO2 containing water is heavier than normal, sinks deeply, so it does not affect the quality of floating water. In other words, the mineralization of CO2 ensures ecological safety.

2021 is the year when almost every family in the United States is familiar with the term “short seller”.

Correct GameStop (NYSE: GM) The short-term squeeze, driven to a certain extent by greed and dissatisfaction, has become an unforgettable cultural moment. For many people who bought GME stock in this populist clamor, this is the first time they have heard the term “short seller.” No one is more enthusiastic about putting shorts on his knees than Elon Musk. Elon Musk saw a storm of support in the process of pushing GameStop higher. Musk runs Tesla, one of the most controversial companies, and has been the focus of short sellers for many years.

Now, after losing tens of billions of dollars, Tesla’s short sellers seem to have given up. Although this stock is still controversial (Bloomberg data shows that among the 41 analysts studying Tesla, 15 are buying, 14 are holding, and 12 are selling-the number of recommendations for buying and selling The difference is very small), but most of the short positions have disappeared.

According to “Barron’s Weekly”, even David Einhorn, who is short on Tesla’s Greenlight Capital (Greenlight Capital), seems to have changed from a large-scale short to a small short (“Barron” Wrote that Greenlight Capital did not respond to reporters’ request for comment on its position).

Today, Tesla’s short-term interest rate is about 6%, which is higher than the average, but far below the astonishing level of 25% three years ago. However, although the bears may have taken a winter break, some people say that given Tesla’s valuation, the negators who bet on Tesla’s share price will not disappear.