Quantcast
Environmental News for a Healthier Planet and Life

Help Support EcoWatch

'The Window of Opportunity for Action Is Almost Closed': UN Report Shows Record Levels of Climate-Changing Gases

Climate
A freeway and a factory emitting smoke in Newark, New Jersey. Kena Betancur / VIEWpress / Corbis via Getty Images

The atmospheric concentrations of the three gases most responsible for climate change reached record highs in 2017, the most recent annual Greenhouse Gas Bulletin released Thursday from the UN's World Meteorological Organization (WMO) found.

The concentration of carbon dioxide in the atmosphere is now at 405.5 parts per million (ppm), or 146 percent of pre-1750 levels. The concentration of methane is now at around 1,859 parts per billion (ppb), around 257 percent of pre-industrial levels, and the concentration of nitrous oxide reached about 329.9 ppb, or 122 percent of pre-industrial levels.


"The last time the Earth experienced a comparable concentration of CO2 was three to five million years ago, when the temperature was two to three degrees Celsius warmer and sea level was 10-20 meters (approximately 32.8 to 65.6 feet) higher than now," WMO Secretary General Petteri Taalas said, as The Guardian reported. "The science is clear. Without rapid cuts in CO2 and other greenhouse gases, climate change will have increasingly destructive and irreversible impacts on life on Earth. The window of opportunity for action is almost closed."

The new findings add to the growing number of reports supporting urgent action to curb climate change. A little over a month ago, the UN's Intergovernmental Panel on Climate Change (IPCC) found that policy makers must reduce greenhouse gas emissions by 45 percent of 2010 levels within 12 years to limit warming to 1.5 degrees Celsius above pre-industrial levels.

"The new IPCC Special Report on Global Warming of 1.5 [degrees Celsius] shows that deep and rapid reductions of emissions of carbon dioxide and other greenhouse gases will be needed in all sectors of society and the economy," IPCC Chair Hoesung Lee told BBC News. "The WMO greenhouse gas bulletin, showing a continuing rising trend in concentrations of greenhouse gases, underlines just how urgent these emissions reductions are."

This month's Greenhouse Gas Bulletin did find that carbon dioxide and methane levels had increased less between 2016 and 2017 than between 2015 and 2016, but were roughly equal to the average increase over the past decade. Further, the reduction in the increase of carbon dioxide last year wasn't because of any change in energy policy. Instead, it was because the El Niño event that peaked in 2015 and 2016 caused drought in some regions, which meant vegetation in those areas absorbed less carbon dioxide from the atmosphere, BBC News explained. That effect was reduced during the 2016 to 2017 period.

"I am very concerned that the three greenhouse gases most responsible for climate change (CO2, methane, and nitrous oxide) are all rising upwards unabated," professor Corinne Le Quéré from the University of East Anglia told BBC News. "CO2 concentrations are now well above 400ppm—levels were 321ppm when I was born, that is a big rise in a human lifetime!"

When it comes to nitrous oxide, a greenhouse gas that also weakens the ozone layer, its levels actually increased from 2016 to 2017 compared with 2015 to 2016. About 40 percent of it enters the atmosphere through human activities like fertilizer use, soil degradation and industry. The report also marked the surprise decline in the decrease of CFC-11, a greenhouse gas that also weakens the ozone layer. It was supposed to be banned by the 1987 Montreal Protocol, but reports have sourced new emissions of the gas to some factories in China.

World leaders will have a chance to act on the findings of this bulletin, as well as the most recent IPCC report, when they meet in a little over a week to discuss ramping up their commitments under the Paris agreement at the 24th Conference of the Parties to the United Nations Framework Convention on Climate Change (COP24) in Katowice, Poland.

UN framework convention on climate change (UNFCCC) head Patricia Espinosa explained to The Guardian that the world was at a crossroads:

"On one hand, greenhouse gas emissions have yet to peak and countries struggle to maintain the concentrated attention and effort needed for a successful response to climate change. On the other hand, climate action is occurring, it is increasing and there is a will to do more. I highlight this because falling into despair and hopelessness is a danger equal to complacency, none of which we can afford."

A UNFCCC report published Wednesday looked at climate action pledges by the numbers in 2018 and found that commitments had been made by:

  • 9,000 cities in 128 countries;
  • 240 regions or states in 40 countries; and
  • More than 6,000 businesses in 120 countries.

EcoWatch Daily Newsletter

Oregano oil is an extract that is not as strong as the essential oil, but appears to be useful both when consumed or applied to the skin. Peakpx / CC by 1.0

By Alexandra Rowles

Oregano is a fragrant herb that's best known as an ingredient in Italian food.

However, it can also be concentrated into an essential oil that's loaded with antioxidants and powerful compounds that have proven health benefits.

Read More Show Less
Brazilian President Jair Bolsonaro meets Ronaldo Caiado, governor of the state of Goiás on June 5, 2020. Palácio do Planalto / CC BY 2.0

Far-right Brazilian President Jair Bolsonaro, who has presided over the world's second worst coronavirus outbreak after the U.S., said Tuesday that he had tested positive for the virus.

Read More Show Less
Although natural gas produces fewer greenhouse gas emissions and other pollutants than coal or oil, it is a major contributor to climate change, an urgent global problem. Skitterphoto / PIxabay

By Emily Grubert

Natural gas is a versatile fossil fuel that accounts for about a third of U.S. energy use. Although it produces fewer greenhouse gas emissions and other pollutants than coal or oil, natural gas is a major contributor to climate change, an urgent global problem. Reducing emissions from the natural gas system is especially challenging because natural gas is used roughly equally for electricity, heating, and industrial applications.

Read More Show Less
The U.S. Environmental Protection Agency has approved two Lysol products as the first to effectively kill the novel coronavirus on surfaces, based on laboratory testing. Paul Hennessy / NurPhoto via Getty Images

The U.S. Environmental Protection Agency (EPA) recently issued a list of 431 products that are effective at killing viruses when they are on surfaces. Now, a good year for Lysol manufacturer Reckitt Benckiser just got better when the EPA said that two Lysol products are among the products that can kill the novel coronavirus that causes COVID-19.

Read More Show Less
U.S. Rep. Alexandria Ocasio-Cortez unveils the Green New Deal resolution in front of the U.S. Capitol on February 7, 2019 in Washington, DC. Alex Wong / Getty Images

By Judith Lewis Mernit

For all its posturing on climate change, the Democratic Party has long been weak on the actual policies we need to save us from extinction. President Barack Obama promised his presidency would mark "the moment when the rise of the oceans began to slow," and then embraced natural gas, a major driver of global temperature rise, as a "bridge fuel." Climate legislation passed in the House in 2009 would have allowed industries to buy credits to pollute, a practice known to concentrate toxic air in black and brown neighborhoods while doing little to cut emissions.

Read More Show Less
About 30,000 claims contending that Roundup caused non-Hodgkin's lymphoma are currently unsettled. Mike Mozart / CC BY 2.0

Bayer's $10 billion settlement to put an end to roughly 125,000 lawsuits against its popular weed killer Roundup, which contains glyphosate, hit a snag this week when a federal judge in San Francisco expressed skepticism over what rights future plaintiffs would have, as the San Francisco Chronicle reported.

Read More Show Less

Trending

Hundreds of sudden elephant deaths in Botswana aren't just a loss for the ecosystem and global conservation efforts. Mario Micklisch / Flickr / CC by 2.0

By Charli Shield

When an elephant dies in the wild, it's not uncommon to later find its bones scattered throughout the surrounding landscape.

Read More Show Less