قالب وردپرس درنا توس
Home / Tag Archives: ozone (page 2)

Tag Archives: ozone

Ozone hole modest despite optimal conditions for ozone depletion

The ozone hole that formed in the upper atmosphere of the Antarctic each September was slightly above average in 2018, reported NOAA and NASA scientists. Above-average low temperatures in the Antarctic stratosphere created ideal conditions for the destruction of ozone this year, but a decline in ozone-depleting chemicals prevented the hole from being as large as it would have been …

Read More »

Humble ozone hole despite optimal exhaustion conditions, scientists claim

Source: AP Modest ozone hole despite optimal conditions of exhaustion Although temperatures in the Antarctic stratosphere had created on average below average temperatures ideal conditions for the destruction of ozone in 2018, the decrease in the boreholes prevented the hole scientists NASA and the National Oceanic and Atmospheric Administration (NOAA) have shown that they were as big as 20 years …

Read More »

Banned Ozone Depleting Chemical was used illegally in China

A dangerous ozone-depleting compound is still used in China, despite being banned worldwide by the Montreal Protocol, a new study finds. East China has emitted significant amounts of this substance – known as carbon tetrachloride (CCl4) – which is known to eat ozone, a protective layer in the earth's atmosphere that protects the world from dangerous ultraviolet radiation. The new …

Read More »

Location of the great mysterious source of the banned ozone depleting substance revealed

The compound, carbon tetrachloride, contributes to the destruction of the Earth's ozone layer, which protects us from harmful ultraviolet radiation. As a result, the production of carbon tetrachloride since 2010 is banned worldwide will result in its release to the atmosphere . However, recent studies have shown that global emissions have not declined as expected, with some 40,000 tonnes still …

Read More »

Cuplite found for the renewed production of ozone layer killing CFC

A few months ago, scientists from around the world unveiled a new puzzle: Somebody in East Asia once again produced banned chlorofluorocarbons (CFCs) – the chemical that made a hole in the ozone layer – and it was not clear who was responsible [19659002] This is a big problem because the ozone layer, without which we are more prone to …

Read More »

Ozone hole mystery: China's insulating chemical is said to be the source of the rise

image copyright NASA / SCIENCE PHOTO LIBRARY Caption The ozone hole over Antarctica in 2000 China's Chinese house insulation is blamed for a massive increase in emissions of a gas that severely damages the Earth's protective ozone layer. The Environmental Investigations Agency (EIA) found widespread use of CFC-11 in China, even though the chemical was completely banned in 2010. Scientists …

Read More »

The world agreed many years ago to ban this ozone killer – but it looks like someone is doing more

The ozone layer has recovered impressively over the past 30 years, but it has never been a foolproof plan. A new study released Wednesday in the journal Nature shows a shocking emission spike for an ozone-depleting chemical banned decades ago by international agreements. The offender who generates this pollutant is still unknown and widespread. "We were undoubtedly shocked," says Stephen …

Read More »

Someone makes a banned chemical that destroys the ozone layer, scientists suspect

Emissions of a banned ozone-depleting chemical are increasing, a group of scientists reported on Wednesday, suggesting someone could secretly produce the pollutant in violation of an international agreement. CFC-11 emissions have increased by 25 percent since 2012, even though the chemical is part of a group of ozone deplants that were phased out under the 1987 Montreal Protocol. "I've been …

Read More »