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Atmospheric CO2 Levels reach Historic Levels, Mauna Loa Observatory in Hawaii warns about Trouble in the Air
- The headline from a year’s worth of test results on CO2 levels from the Mauna Loa Observatory in Hawaii states that the atmospheric CO2 levels may never fall below 400 ppm
- the more carbon dioxide that is in the atmosphere, the more heat will be trapped and the warmer the planet will become
- The Organization for Economic Cooperation and Development says we have to cap the amount of carbon in the atmosphere at 450 ppm
Oct 01, 2016: The atmospheric CO2 levels may never fall below 400 parts per million (ppm) ever again.
That’s the headline from a year’s worth of test results on CO2 levels from the Mauna Loa Observatory in Hawaii.
In a study released this month, lead author professor Richard Betts of the University of Exeter blames the cyclical Pacific Ocean warming phenomenon known as El Nino in part for the grim record. In his research, published in Nature Climate Change, Betts says El Nino “warms and dries tropical ecosystems, reducing their uptake of carbon, and exacerbating forest fires.”
Betts and his colleagues were able to predict this landmark. “I was looking at the numbers this morning,” NASA scientist Ben Poulter told VOA. “It is remarkable that they were able to make these predictions in 2015.”
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Carbon dioxide is odorless and tasteless, and it makes up less than 1 percent of our atmosphere. But this small amount of CO2 has a big impact on the planet. According to the National Oceanic and Atmospheric Administration, without the warming of the planet that carbon dioxide and other so-called greenhouse gases provide, Earth’s average temperature would fall below freezing.
But that’s where the old saying about too much of a good thing comes into play, because the more carbon dioxide that is in the atmosphere, the more heat will be trapped and the warmer the planet will become.
The planet didn’t reach the 400 ppm mark by itself. Prior to the Industrial Revolution, CO2 levels were at 280 ppm. When tests at Mauna Loa began, the level was at 315 ppm. Scientists say human contributions have played a large part in pushing the level over 400 ppm.
All of the carbon people are pumping into the atmosphere is having an impact on the planet. But what exactly is that impact? That’s been the challenge facing climate scientists for decades.
At the very least, according to NOAA, warming can cause “sea level rise, shifting precipitation patterns, expansion of areas affected by drought, increasing numbers of severe heat waves, and more intense precipitation events.”
Already, some places are getting wetter, and some places are getting drier. The good news is that humans are really adaptable. The bad news is that a host of other creatures aren’t.
And it gets worse: A lot of that excess carbon gets absorbed by the world’s oceans, making the water more acidic. NOAA says this interferes with such things as “the ability of marine plants and animals to build their shells,” and that ultimately threatens “a reorganization of the entire marine food chain, which could lead to a mass extinction event.”
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But will all this happen? That’s the the part that concerns climate scientists the most. Hitting 400 ppm means we’re in uncharted territory. The last time atmospheric CO2 levels were this high is unclear, but a number of competing studies put the date at millions of years ago. We may not know whether an extinction event lies ahead, but we can count on weather events like blizzards and droughts becoming more extreme, and more common.
Poulter says the 400 ppm level “tells us that society moving way too fast toward dangerous CO2 concentration in the atmosphere.” So what can we do to fix it?
The Organization for Economic Cooperation and Development says we have to cap the amount of carbon in the atmosphere at 450 ppm. That keeps us below an average global temperature increase of 2 degrees Celsius, which was the goal set at a 2010 U.N. conference on climate change.
But to do that, the world may need to phase out use of dirty fuel like coal and cut back on oil. And according to the White House, “global emissions would have to decline by about 60 percent by 2050 [and] industrialized countries’ greenhouse gas emissions would have to decline by about 80 percent by 2050.”
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Poulter says, “We’re only about 15 to 20 years away from reaching the 450 ppm target,” which means efforts to cut carbon emissions have to start now. Forty-one nations — including the world’s biggest polluters, the United States, China and those in the European Union — have agreed to reduce their carbon output significantly by 2020.
Studies like the one led by Betts can quickly and effectively tell us if the things we are doing to combat climate change are working. “As countries start to implement reduction plans,” Poulter says, “we can monitor the effects those reductions are having.” (VOA)
NEW DELHI - India Navy sending four ships for exercises and port visits with the Philippines, Vietnam, Singapore, Indonesia and Australia to strengthen cooperation in the Indo-Pacific region, its navy said Wednesday, as China's maritime power grows in the area.
The Indian ships will spend more than two months in the region, the navy said in a statement.
Commander Vivek Madhwal, the Indian navy spokesman, said four ships will take part.
The ships will also participate in a multilateral exercise, MALABAR-21, along with the Japanese, Australian and U.S. navies, the statement said.
It said the exercises will enhance coordination with friendly countries, based on common maritime interests and a commitment to freedom of navigation.
"Besides regular port calls, the task group will operate in conjunction with friendly navies to build military relations and develop interoperability in the conduct of maritime operations," the statement said.
The U.S., India, Japan and Australia are part of the Quad regional alliance created in response to China's growing economic and military strength. Washington has long viewed New Delhi as a key partner in efforts to blunt increasing Chinese assertiveness in the Indo-Pacific region.
India is also in a continuing standoff with China over their disputed border in the eastern Ladakh region. The countries have stationed tens of thousands of soldiers backed by artillery, tanks and fighter jets along their de facto border, called the Line of Actual Control.
Last year, 20 Indian troops died in a clash with Chinese soldiers involving clubs, stones and fists in a portion of the disputed border. China said it lost four soldiers.(VOA/HP)
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.