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Global methane levels have hit an all-time high after what appears to be a near-record yearly atmospheric increase in the potent greenhouse gas.
The concentration of methane in the Earth’s atmosphere reached nearly 1,875 parts per billion in 2019, up from the previous year’s 1,866 parts per billion, according to preliminary data collected by the National Oceanic and Atmospheric Administration (NOAA).
If confirmed later this year, it would be the second highest increase in methane levels in more than two decades. The NOAA began collecting global methane data in 1983.
Though methane remains in the atmosphere for only a few years, it is 28 times more powerful than carbon dioxide at trapping the sun’s heat, and it poses an increasingly grave threat to efforts to tackle escalating global heating.
“Here we are. It’s 2020, and it’s not only not dropping. It’s not level. In fact, it’s one of the fastest growth rates we’ve seen in the last 20 years,” Drew Shindell, a climate scientist at Duke University, told Scientific American.
1/20 California
In this decade, humans have become ever more aware of climate change. Calls for leaders to act echo around the globe as the signs of a changing climate become ever more difficult to ignore
Getty
2/20 Athens, Greece
Fierce wildfires have flared up in numerous countries. The damage being caused is unprecedented: 103 people were killed in wildfires last year in California, one of the places best prepared, best equipped to fight such blazes in the world
AFP/Getty
3/20 Redding, California
Entire towns have been razed. The towns of Redding and Paradise in California were all but eliminated in the 2018 season
AP
4/20 Athens, Greece
While wildfires in Greece (pictured), Australia, Indonesia and many other countries have wrought chaos to infrastructure, economies and cost lives
AFP/Getty
5/20 Carlisle, England
In Britain, flooding has become commonplace. Extreme downpours in Carlisle in the winter of 2015 saw the previous record flood level being eclipsed by two feet
AFP/Getty
6/20 Hebden Bridge, England
Hebden Bridge in West Yorkshire has flooded repeatedly in the past decade, with the worst coming on Christmas Day 2015. Toby Smith of Climate Visuals, an organisation focused on improving how climate change is depicted in the media, says: “Extreme weather and flooding, has and will become more frequent due to climate change. An increase in the severity and distribution of press images, reports and media coverage across the nation has localised the issue. It has raised our emotions, perception and personalised the effects and hazards of climate change.”
Getty
7/20 Somerset, England
Out west in Somerset, floods in 2013 led to entire villages being cut off and isolated for weeks
Getty
8/20 Dumfries, Scotland
“In summer 2012, intense rain flooded over 8000 properties. In 2013, storms and coastal surges combined catastrophically with elevated sea levels whilst December 2015, was the wettest month ever recorded. Major flooding events continued through the decade with the UK government declaring flooding as one of the nation’s major threats in 2017,” says Mr Smith of Climate Visuals
Getty
9/20 London, England
Weather has been more extreme in Britain in recent years. The ‘Beast from the East’ which arrived in February 2018 brought extraordinarily cold temperatures and high snowfall. Central London (pictured), where the city bustle tends to mean that snow doesn’t even settle, was covered in inches of snow for day
PA
10/20 London, England
Months after the cold snap, a heatwave struck Britain, rendering the normally plush green of England’s parks in Summer a parched brown for weeks
AFP/Getty
11/20 New South Wales, Australia
Worsening droughts in many countries have been disastrous for crop yields and have threatened livestock. In Australia, where a brutal drought persisted for months last year, farmers have suffered from mental health problems because of the threat to their livelihood
Reuters
12/20 Tonle Sap, Cambodia
Even dedicated climate skeptic Jeremy Clarkson has come to recognise the threat of climate change after visiting the Tonle Sap lake system in Cambodia. Over a million people rely on the water of Tonle Sap for work and sustinence but, as Mr Clarkson witnessed, a drought has severley depleted the water level
Carlo Frem/Amazon
13/20 Addis Ababa, Ethiopia
In reaction to these harbingers of climate obliteration, some humans have taken measures to counter the impending disaster. Ethiopia recently planted a reported 350 million trees in a single day
AFP/Getty
14/20 Morocco
Morocco has undertaken the most ambitious solar power scheme in the world, recently completing a solar plant the size of San Francisco
AFP/Getty
15/20 London, England
Electric cars are taking off as a viable alternative to fossil fuel burning vehicles and major cities across the world are adding charging points to accomodate
AFP/Getty
16/20 Purmerend, The Netherlands
Cities around the world are embracing cycling too, as a clean (and healthy) mode of transport. The Netherlands continues to lead the way with bikes far outnumbering people
Jeroen Much/Andras Schuh
17/20 Xiamen, China
Cycling infrastructure is taking over cities the world over, in the hope of reducing society’s dependency on polluting vehicles
Ma Weiwei
18/20 Chennai, India
Despite positive steps being taken, humans continue to have a wildly adverse effect on the climate. There have been numerous major oil spills this decade, the most notable being the BP oil spill in the Gulf of Mexico in 2010
AFP/Getty
19/20 Amazon rainforest, Brazil
More recently, large swathes of the Amazon rainforest were set alight by people to clear land for agriculture
AFP/Getty
20/20 California
This decade may have seen horrors but it has led to an understanding that the next decade must see change if human life is to continue
Getty
1/20 California
In this decade, humans have become ever more aware of climate change. Calls for leaders to act echo around the globe as the signs of a changing climate become ever more difficult to ignore
Getty
2/20 Athens, Greece
Fierce wildfires have flared up in numerous countries. The damage being caused is unprecedented: 103 people were killed in wildfires last year in California, one of the places best prepared, best equipped to fight such blazes in the world
AFP/Getty
3/20 Redding, California
Entire towns have been razed. The towns of Redding and Paradise in California were all but eliminated in the 2018 season
AP
4/20 Athens, Greece
While wildfires in Greece (pictured), Australia, Indonesia and many other countries have wrought chaos to infrastructure, economies and cost lives
AFP/Getty
5/20 Carlisle, England
In Britain, flooding has become commonplace. Extreme downpours in Carlisle in the winter of 2015 saw the previous record flood level being eclipsed by two feet
AFP/Getty
6/20 Hebden Bridge, England
Hebden Bridge in West Yorkshire has flooded repeatedly in the past decade, with the worst coming on Christmas Day 2015. Toby Smith of Climate Visuals, an organisation focused on improving how climate change is depicted in the media, says: “Extreme weather and flooding, has and will become more frequent due to climate change. An increase in the severity and distribution of press images, reports and media coverage across the nation has localised the issue. It has raised our emotions, perception and personalised the effects and hazards of climate change.”
Getty
7/20 Somerset, England
Out west in Somerset, floods in 2013 led to entire villages being cut off and isolated for weeks
Getty
8/20 Dumfries, Scotland
“In summer 2012, intense rain flooded over 8000 properties. In 2013, storms and coastal surges combined catastrophically with elevated sea levels whilst December 2015, was the wettest month ever recorded. Major flooding events continued through the decade with the UK government declaring flooding as one of the nation’s major threats in 2017,” says Mr Smith of Climate Visuals
Getty
9/20 London, England
Weather has been more extreme in Britain in recent years. The ‘Beast from the East’ which arrived in February 2018 brought extraordinarily cold temperatures and high snowfall. Central London (pictured), where the city bustle tends to mean that snow doesn’t even settle, was covered in inches of snow for day
PA
10/20 London, England
Months after the cold snap, a heatwave struck Britain, rendering the normally plush green of England’s parks in Summer a parched brown for weeks
AFP/Getty
11/20 New South Wales, Australia
Worsening droughts in many countries have been disastrous for crop yields and have threatened livestock. In Australia, where a brutal drought persisted for months last year, farmers have suffered from mental health problems because of the threat to their livelihood
Reuters
12/20 Tonle Sap, Cambodia
Even dedicated climate skeptic Jeremy Clarkson has come to recognise the threat of climate change after visiting the Tonle Sap lake system in Cambodia. Over a million people rely on the water of Tonle Sap for work and sustinence but, as Mr Clarkson witnessed, a drought has severley depleted the water level
Carlo Frem/Amazon
13/20 Addis Ababa, Ethiopia
In reaction to these harbingers of climate obliteration, some humans have taken measures to counter the impending disaster. Ethiopia recently planted a reported 350 million trees in a single day
AFP/Getty
14/20 Morocco
Morocco has undertaken the most ambitious solar power scheme in the world, recently completing a solar plant the size of San Francisco
AFP/Getty
15/20 London, England
Electric cars are taking off as a viable alternative to fossil fuel burning vehicles and major cities across the world are adding charging points to accomodate
AFP/Getty
16/20 Purmerend, The Netherlands
Cities around the world are embracing cycling too, as a clean (and healthy) mode of transport. The Netherlands continues to lead the way with bikes far outnumbering people
Jeroen Much/Andras Schuh
17/20 Xiamen, China
Cycling infrastructure is taking over cities the world over, in the hope of reducing society’s dependency on polluting vehicles
Ma Weiwei
18/20 Chennai, India
Despite positive steps being taken, humans continue to have a wildly adverse effect on the climate. There have been numerous major oil spills this decade, the most notable being the BP oil spill in the Gulf of Mexico in 2010
AFP/Getty
19/20 Amazon rainforest, Brazil
More recently, large swathes of the Amazon rainforest were set alight by people to clear land for agriculture
AFP/Getty
20/20 California
This decade may have seen horrors but it has led to an understanding that the next decade must see change if human life is to continue
Getty
Scientists last year warned higher methane levels will make it even harder to reach targets set by the Paris climate change agreement.
Though uncertain about the source of the year-on-year increases, NOAA researchers have previously said much of it was coming from the tropics.
They believe it is likely due to microbial changes in methane-belching tropical wetlands, potentially caused by warmer temperatures in what amounts to a dangerous feedback loop.
The hypothesis is that as the climate warms the efficiency of the microbial communities that convert organic matter into methane increases.
But Rob Jackson, professor of Earth system science at Stanford University, said some of last year’s surge was likely also due to increases from agriculture and natural gas use.
In its annual sustainability report released last week, the fossil fuel company Shell revealed its annual methane emissions stood at 91,000 tonnes, down from 92,000 a year earlier.
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