Taliban gunmen attack Pak air force base, 13 militants killed

Kensington (United States), May 20: The world cut its daily carbon dioxide emissions by 17% at the peak of the pandemic shutdown last month, a new study found.

But with life and heat-trapping gas levels inching back toward normal, the brief pollution break will likely be “a drop in the ocean" when it comes to climate change, scientists said.

In their study of carbon dioxide emissions during the coronavirus pandemic, an international team of scientists calculated that pollution levels are heading back up — and for the year will end up between 4% and 7% lower than 2019 levels.

That's still the biggest annual drop in carbon emissions since World War II.

It'll be 7% if the strictest lockdown rules remain all year long across much of the globe, 4% if they are lifted soon.

For a week in April, the United States cut its carbon dioxide levels by about one-third.

China, the world's biggest emitter of heat-trapping gases, sliced its carbon pollution by nearly a quarter in February, according to a study Tuesday in the journal Nature Climate Change. India and Europe cut emissions by 26% and 27% respectively.

The biggest global drop was from April 4 through 9 when the world was spewing 18.7 million tons (17 million metric tons) of carbon pollution a day less than it was doing on New Year's Day.

Such low global emission levels haven't been recorded since 2006. But if the world returns to its slowly increasing pollution levels next year, the temporary reduction amounts to ''a drop in the ocean," said study lead author Corinne LeQuere, a climate scientist at the University of East Anglia.

“It's like you have a bath filled with water and you're turning off the tap for 10 seconds," she said.

By April 30, the world carbon pollution levels had grown by 3.3 million tons (3 million metric tons) a day from its low point earlier in the month. Carbon dioxide stays in the air for about a century.

Outside experts praised the study as the most comprehensive yet, saying it shows how much effort is needed to prevent dangerous levels of further global warming.

“That underscores a simple truth: Individual behavior alone ... won't get us there,” Pennsylvania State University climate scientist Michael Mann, who wasn't part of the study, said in an email.

“We need fundamental structural change.”

If the world could keep up annual emission cuts like this without a pandemic for a couple decades, there's a decent chance Earth can avoid warming another 1.8 degrees (1 degree Celsius) of warming from now, study authors said. But getting the type of yearly cuts to reach that international goal is unlikely, they said.

If next year returns to 2019 pollution levels, it means the world has only bought about a year's delay in hitting the extra 1.8 degrees (1 degree Celsius) of warming that leaders are trying to avoid, LeQuere said. That level could still occur anywhere from 2050 to 2070, the authors said.

The study was carried out by Global Carbon Project, a consortium of international scientists that produces the authoritative annual estimate of carbon dioxide emissions. They looked at 450 databases showing daily energy use and introduced a measurement scale for pandemic-related societal “confinement” in its estimates.

Nearly half the emission reductions came from less transportation pollution, mostly involving cars and trucks, the authors said. By contrast, the study found that drastic reductions in air travel only accounted for 10% of the overall pollution drop.

In the US, the biggest pollution declines were seen in California and Washington with plunges of more than 40%.

Huawei will be completely removed from the UK's 5G networks by the end of 2027, the UK government announced on Tuesday after a review by the country's National Cyber Security Centre (NCSC) on the impact of US sanctions against the Chinese telecommunications giant.

In the lead up to this complete removal of all Huawei kit from UK networks, there will be a total ban on the purchase of any new 5G kit after December 31, 2020.

The decision was taken at a meeting of the UK's National Security Council (NSC) chaired by Prime Minister Boris Johnson, in response to new US sanctions against the telecom major imposed in May which removed the firm's access to products which have been built based on US semiconductor technology.

5G will be transformative for our country, but only if we have confidence in the security and resilience of the infrastructure it is built upon, said Oliver Dowden, UK Secretary of State for Digital, Culture, Media and Sport (DCMS).

Following US sanctions against Huawei and updated technical advice from our cyber experts, the government has decided it necessary to ban Huawei from our 5G networks. No new kit is to be added from January 2021, and UK 5G networks will be Huawei free by the end of 2027. This decisive move provides the industry with the clarity and certainty it needs to get on with delivering 5G across the UK, he said.

The minister, who laid out the details of the UK's ban on Huawei in the House of Commons, said the government will now seek to legislate with a new Telecoms Security Bill to put in place the powers necessary to implement the tough new telecoms security framework.

By the time of the next election (2024) we will have implemented in law an irreversible path for the complete removal of Huawei equipment from our 5G networks, said Dowden.

The new law will give the government the national security powers to impose these new controls on high risk vendors and create extensive security duties on network operators to drive up standards, DCMS said.

Technical experts at the NCSC reviewed the consequences of the US sanctions and concluded that Huawei will need to do a major reconfiguration of its supply chain as it will no longer have access to the technology on which it currently relies and there are no alternatives which we have sufficient confidence in.

They found the new restrictions make it impossible to continue to guarantee the security of Huawei equipment in the future.

After a ban on the purchase of new Huawei kit for 5G from next year, the aim is to completely remove the Chinese vendor's influence on 5G networks across the UK by the end of 2027.

The DCMS said Tuesday's decision takes into account the UK's specific national circumstances and how the risks from these sanctions are manifested in the country.

The existing restrictions on Huawei in sensitive and critical parts of the network remain in place, it highlighted.

The DCMS said the US action also affects Huawei products used in the UK's full fibre broadband networks. However, the UK has managed Huawei's presence in the UK's fixed access networks since 2005 and we also need to avoid a situation where broadband operators are reliant on a single supplier for their equipment.

As a result, following security advice from experts, DCMS is advising full fibre operators to transition away from purchasing new Huawei equipment. A technical consultation will determine the transition timetable, but it is expect this period to last no longer than two years.

The government said its new approach strikes the right balance by recognising full fibre's established presence and supporting the connections that the public relies on, while fully addressing the security concerns.

It stressed that its new policy in relation to high risk vendors has not been designed around one company, one country or one threat but as an enduring and flexible policy that will enable the UK to manage the risks to the network, now and in the future.

Washington, Apr 20: The US wants to send a team of experts to China to investigate coronavirus, President Donald Trump has said, a day after he warned Beijing of "consequences" if it was knowingly responsible for the spread of COVID-19 which has killed more than 165,000 people globally, including over 41,000 in America.

Describing the coronavirus as a plague, Trump, during his White House news conference on Sunday, said that he is not happy with China where the pandemic emerged in December last year in the central Chinese city of Wuhan.

“We spoke to them (Chinese) a long time ago about going in. We want to go in. We want to see what's going on. And we weren't exactly invited, I can tell you that,” the President told reporters.

“I was very happy with the (trade) deal (with China), very happy with everything and then we found out about the plague and since we found out about that I'm not happy,” he said.

The US has launched an investigation into whether the deadly virus "escaped" from the Wuhan Institute of Virology.

He has repeatedly expressed disappointment over China's handling of the coronavirus disease, alleged non-transparency and initial non-cooperation from Beijing with Washington on dealing with the crisis.

“Based on an investigation, we are going to find out,” Trump told reporters.

A day earlier, he warned China that it should face consequences if it was "knowingly responsible" for the spread of the novel coronavirus, upping the ante on Beijing over its handling of the COVID-19 pandemic.

“If they (China) were knowingly responsible… then there should be consequences. You're talking about, you know, potentially lives like nobody's seen since 1917,” Trump said on Saturday.

The opposition Democratic Party said that Trump has falsely claimed he acted early by restricting travel from China when it was little too late and he continued to downplay the virus throughout February.

The number of COVID-19 deaths in the US crossed 41,000 and the total infections were more than 764,000 so far.

New York, the epicentre of the deadly COVID-19 in the US, has 2,42,000 cases and over 17,600 fatalities so far. It has registered a 50-percent decline in new cases over an eight-day period.

The novel virus, which emerged in China in December last year, has killed over 160,000 and infected more than 2.3 million people worldwide.