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Four cost-effective methods are ready today to remove substantial amounts of planet-warming carbon dioxide (CO2) from the atmosphere, according to a new report from a panel of top scientists.
All four take advantage of nature’s ability to take carbon from the air and store it.
However, fully implementing all of them still would not be enough to prevent potentially catastrophic levels of global warming, according to the report from the National Academies of Sciences, Engineering, and Medicine.
Nearly all nations have signed on to the Paris climate agreement, which pledges to keep global warming to less than a global average of 2 degrees Celsius above pre-industrial levels, and ideally below 1.5 degrees.
Emissions from burning fossil fuels and other sources have already warmed the planet about 1 degree. At the current pace, temperatures will likely top 1.5 degrees by mid-century, according to the latest report from the U.N. Intergovernmental Panel on Climate Change.
Zero emissions technologies such as wind farms and solar panels will not be enough to stop global warming, the U.N. report says. Negative emissions technologies will be needed as well.
Trees are tops
The National Academies panel looked at existing strategies for removing CO2 from the atmosphere and found four that are ready for widespread use.
The first is among the most tried-and-true: planting trees.
“It’s even kind of a misnomer to call it a technology,” said Princeton University biologist Stephen Pacala, who chaired the panel.
Adding and restoring forests, plus better management of existing forests, are the two cheapest ways to get substantial amounts of carbon out of the atmosphere, the report says.
Farm and ranch lands offer the next biggest and cheapest CO2 removal strategies.
Overused soils lose carbon, as well as nutrients. Rebuilding them increases their fertility and water-holding capacity.
“And you get a negative emission because the carbon comes from the atmosphere,” Pacala said.
“We know how to do quite a bit of this,” he added, with soil conservation techniques that began after the 1930s Dust Bowl in the U.S. Great Plains.
The fourth ready-to-go approach, the report says, is known as biomass energy with carbon capture and storage, or BECCS. It generally involves burning or fermenting some kind of plant matter to produce electricity, fuel or heat, then capturing and storing the carbon emissions in underground sinks or elsewhere.
The report says BECCS has the biggest CO2 removal potential of the four but is also the most costly.
Applied worldwide, these techniques together have the potential to pull up to 10 gigatons of CO2 out of the atmosphere per year.
The world emits about 50 gigatons per year.
The authors note that devoting more land to CO2 removal would mean diverting land needed to produce food and clothing.
For example, they say removing 10 gigatons of CO2 by BECCS alone would consume nearly 40 percent of the world’s cropland.
Even 10 gigatons of CO2 removal is extremely optimistic, the authors note. It assumes all the strategies are used to their fullest extent everywhere.
The panel also considered emerging technology that captures carbon dioxide directly from the air.
Currently, it is too expensive to be practical. But if the costs come down, Pacala said, it “would have essentially unlimited capacity to remove carbon.”
Another promising approach would take advantage of the ability of certain naturally occurring minerals to react with CO2 and lock it up. But the authors say the fundamentals are poorly understood.
The report outlines a detailed research agenda to maximize all of the strategies. It notes that while the U.S. federal government may have other priorities, U.S. states, cities, corporations and other countries around the world are investing in fighting climate change. The country where the tools are developed stands to gain an economic boost, it says. (VOA)
The UK government on Thursday announced that it will move India from the red to the amber list on Sunday, in the country's latest update to the 'Red-Amber-Green' traffic light ratings for arrivals into England amid the Covid-19 pandemic.
This means the visit visas for the UK from India are open, in addition to other long-term visas that have remained open. But travellers from India arriving in England can complete a 10-day quarantine at home or in the place they are staying (not mandatorily quarantine in a managed hotel).
The UK government also announced that arrivals from France to England will no longer need to quarantine if they are fully vaccinated. The step aligns France with the rest of the amber list now that the proportion of beta variant cases has fallen, where those who are fully vaccinated with a vaccine authorised and administered in the UK, the US or Europe do not need to quarantine when arriving in England.
This move also simplifies the system to three categories, as well as the green watch list to give travellers notice where green status is at risk.
To continue cautiously reopening international travel, Austria, Germany, Slovenia, Slovakia, Latvia, Romania and Norway will be added to the government's green list, having demonstrated they posed a low risk to UK public health.
Besides India, Bahrain, Qatar and the UAE will also be moved from the red to the amber list, as the situation in these countries has improved.
The data for all countries will be kept under review and the government will not hesitate to take action where a country's epidemiological picture changes, a statement by the UK government said.
Following an assessment of the latest data, Georgia, La Reunion, Mayotte and Mexico will be added to the red list as they present a high public health risk to the UK from known variants of concern, known high-risk variants under investigation or as a result of very high in-country or territory prevalence of Covid-19.
Arrivals from Spain and all its islands are advised to use a PCR test as their pre-departure test wherever possible, as a precaution against the increased prevalence of the virus and variants in the country.
Transport Secretary Grant Shapps said: "We are committed to opening up international travel safely, taking advantage of the gains we've made through our successful vaccination programme, helping connect families, friends and businesses around the world.
"While we must continue to be cautious, today's changes reopen a range of different holiday destinations across the globe, which is good news for both the sector and travelling public."
Since February, anyone who arrives in the UK from a red list country has been required by law to book a stay in a managed quarantine facility for 10 days.
In order to ensure taxpayers are not subsidising the costs of staying in these facilities, which have gone up, the cost will increase from August 12. Alternative payment arrangements remain available to those who genuinely cannot afford to pay and rates remain the same for children up to 12.(IANS/HP)
A Hindu temple in Pakistan's Punjab province was reportedly vandalized by hundreds of people after a nine-year-old Hindu boy, who allegedly urinated at a local seminary, received bail, a media report said on Thursday.
According to the Dawn news report, the incident took place on Wednesday in Bhong town, about 60 km from Rahim Yar Khan city.
Besides the vandalization, the mob also blocked the Sukkur-Multan Motorway (M-5), the report added.
Citing sources, Dawn news said that a case was registered against the minor on July 24 based on a complaint filed by a cleric, Hafiz Muhammad Ibrahim, of the Darul Uloom Arabia Taleemul Quran.
The sources said that "some Hindu elders did tender an apology to the seminary administration saying the accused was a minor and mentally challenged".
But, when a lower court granted him bail a few days ago, some people incited the public in the town on Wednesday and got all shops there closed in protest, the report quoted the sources as further saying.
A video clip showing people wielding clubs and rods storming the temple and smashing its glass doors, windows, lights, and damaging the ceiling fans went viral on social media.
In response, one Twitter user said: "Ganesh Temple, village Bhong in Rahim Yar Khan, Punjab has been ravaged. Another day, another attack on Hindus in Pakistan."
Another said: "Yesterday, the mob ran amok at Temple over minor boy issue who allegedly urinated, the boy said to be mentally handicapped. Hindu community made an apology for the boy — a case registered against the nine-year-old boy. Those vandalized temples, no FIR registered against them."
District police spokesman Ahmed Nawaz Cheema said Rangers had been deployed in the troubled area and the situation was under control.
A small town close to the River Indus and Sindh-Punjab border, Bhong houses a number of gold traders who originally hail from Ghotki and Dehrki (Sindh), according to the Dawn news report.
A ruling PTI member representing the minority said he had been in touch with the local Hindu community and influential Rais family of Bhong since the issue surfaced.
OṀ KALMASHARAHITABHŨMYAI NAMAH:
OṀ (AUM) -KAL-MA-SHA-RA-HI-TA-BHOO-MYAI— NA-MA-HA
ॐ कल्मषरहितभूम्यै नमः
(Kalmasham: Tainted, blemish, dirty, sinful, wicked, foul, dosha, opprobrium, stigma; Rahita: Absent, devoid of)
Kalmasham is the opposite of purity; it means impure, contaminated and defective. The word is used in several senses such as: defective, fault, sin, dosham, tainted, vice, crime, disrespect, abuse, evil and contamination. However, it is also used in a technical sense in certain fields of knowledge. In Vedic literature we see words like pavitram, and pavitrata in the opposite sense of kalmasham. We, as Hindus, see everything as pure and equitable with God in an implied meaning that every atom at the microscopic level is part of the Supreme Power (Bhagavān). Having this knowledge and understanding, Hindus see the presence of God in living as well as non-living objects and have a pavitra meaning- kalmasharahita bandham.
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In Vedas and Purāṇās, Lord Shri Ramachandra Murty is portrayed without any defects and His marriage with Sīta was described as kalmasharahitam. He was glorified as the one who strictly observed the 'ekapatnī vratam' meaning-'one wife as a life partner'. Even when Sīta was abducted by the demon- Rāvaṇa and he kept her in his palace for a year, Rama did not look at another woman. The same credit goes to His consort and wife Sīta, who came out of Agni (pyre of fire) as a shining diamond proving her chastity and kalmasharahitam to the world. Our sacred literature is full of these incidents. Our dharmaśhāstrās explain that what is kalmasham is that which brings defection to one's purity. They advise purity in our thought, speech and actions.
God Ram and Goddess SitaGetty Pictures
There are many relationships we have as an individual. Some are pure and kalmasharahitam, as opposed to other relationships, like extramarital affairs. The relationship between husband and wife; brother and sister; father and daughter; parents and children; between siblings; teacher and student; among friends; and last but not least, between a devotee and his desired, beloved and personal god are considered kalmasharahitam.
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As a country, we have never waged war against another country with the intention of occupancy and robbing their wealth, or to convert them to our religion. We do not have that kalmasham on our hands or in our hearts.
Our land is 'Kalmasharahita Bhūmi'.