A new World Meteorological Organization bulletin has revealed the levels of gases in the atmosphere that drive global warming increased to a record high in 2012.
According to the WMO, atmospheric CO2 grew more rapidly last year than its average rise over the past decade.
Concentrations of methane and nitrous oxide also broke previous records
Thanks to carbon dioxide and these other gases, the WMO says the warming effect on our climate has increased by almost a third since 1990.
The WMO’s annual greenhouse gas bulletin measures concentrations in the atmosphere, not emissions on the ground.
Carbon dioxide is the most important of the gases that they track, but only about half of the CO2 that’s emitted by human activities remains in the atmosphere, with the rest being absorbed by the plants, trees, the land and the oceans.
Since the start of the industrial era in 1750, global average levels of CO2 in the atmosphere have increased by 141%.
According to the WMO there were 393.1 parts per million (ppm) of carbon dioxide in the atmosphere in 2012, an increase of 2.2 ppm over 2011.
This was above the yearly average of 2.02 ppm over the past decade.
The levels of gases in the atmosphere that drive global warming increased to a record high in 201
“The observations highlight yet again how heat-trapping gases from human activities have upset the natural balance of our atmosphere and are a major contribution to climate change,” said WMO Secretary-General Michel Jarraud.
While the daily measurement of carbon dioxide in the atmosphere exceeded the symbolic 400 ppm mark in May this year, according to the WMO the global annual average CO2 concentration will cross this point in 2015 or 2016.
Levels of methane also reached record highs in 2012 of 1,819 parts per billion. Concentrations have been increasing since 2007 after a period when they appeared to be leveling off.
The WMO report says that it is not yet possible to attribute the methane increase to either human activities like cattle breeding and landfills or natural sources such as wetlands.
They believe that the rising emissions come from the tropical and mid-latitude northern hemisphere and not from the Arctic, where methane from the melting of permafrost and hydrates has long been a concern.
Emissions of nitrous oxide have also grown, with the atmospheric concentration in 2012 at 325.1 parts per billion, 120% above pre-industrial levels.
Nitrous oxide gas, although its concentrations are tiny compared to CO2, is 298 times more warming and also plays a role in the destruction of the ozone layer.
Recent research indicates that the rate of increase in emissions might be slowing down, but the gases can continue to concentrate in the atmosphere and exert a climate influence for hundreds if not thousands of years.
Scientists believe that the new data indicates that global warming will be back with a vengeance, after a slowdown in the rate of temperature increases over the past 14 years.
UN climate talks in Doha, Qatar, have closed with a historic shift in principle but few genuine cuts in greenhouse gases.
The summit established for the first time that rich nations should move towards compensating poor nations for losses due to climate change.
Developing nations hailed it as a breakthrough, but condemned the gulf between the science of climate change and political attempts to tackle it.
The deal, agreed by nearly 200 nations, extends to 2020 the Kyoto Protocol.
It is the only legally-binding plan for combating global warming.
The deal covers Europe and Australia, whose share of world greenhouse gas emissions is less than 15%.
But the conference also cleared the way for the Kyoto protocol to be replaced by a new treaty binding all rich and poor nations together by 2015 to tackle climate change.
The final text “encourages” rich nations to mobilize at least $10 billion a year up to 2020, when the new global climate agreement is due to kick in.
There was last-minute drama as the talks were thrown into turmoil by the insistence of Russia, Ukraine and Belarus that they should be allowed extra credit for the emissions cuts they made when their industries collapsed.
After a long delay, the chairman lost patience, re-started the meeting and gavelled through the agenda so fast there was no chance for Russia to object.
A cheer exploded into prolonged applause. Russia bitterly objected at what it said was a clear breach of procedure, but the chairman said he would do no more than reflect the Russian view in the final report.
The big players, the US, EU and China accepted the agreement with varying degrees of reservation. But the representative for the small island states at severe risk from climate change was vociferous.
“We see the package before us as deeply deficient in mitigation (carbon cuts) and finance. It’s likely to lock us on the trajectory to a 3,4,5C rise in global temperatures, even though we agreed to keep the global average temperature rise of 1.5C to ensure survival of all islands,” he said.
“There is no new finance (for adapting to climate change and getting clean energy) – only promises that something might materialize in the future. Those who are obstructive need to talk not about how their people will live, but whether our people will live.”
The island states accepted the agreement because for them it is better than nothing. Other diplomats will point to the immense complexity of the UN process, which is attempting to move away from the old Kyoto Protocol into a new phase binding rich and poor nations together in the task of tackling climate change.
The proposed new Loss and Damage mechanism is held up as an example of the success of the diplomatic process.
UN climate talks in Doha, Qatar, have closed with a historic shift in principle but few genuine cuts in greenhouse gases
Until now rich nations have agreed finance to help developing countries to get clean energy and adapt to climate change, but they have stopped short of accepting responsibility for damage caused by climate change elsewhere.
But in Doha that broad principle was agreed.
“It is a breakthrough,” said Martin Khor of the South Centre – an association of 52 developing nations. “The term Loss and Damage is in the text – this is a huge step in principle. Next comes the fight for cash.
“What helped swing it was [US President Barack] Obama asking Congress for $60bn for the damage caused by [Hurricane] Sandy,” he said.
Saleem ul-Huq, from the think-tank IIED in Bangladesh, told me the text should have been firmer, but he said: “This is a watershed in the talks. There is no turning back from this.”
Nick Mabey, from the UK think-tank E3G, said: “This agreement really opens a can of worms – it might be applied to countries damming transboundary rivers, for instance. It could be very significant in future.”
The US had been adamant that this measure would be blocked, and the EU nearly vetoed it, too.
Todd Stern, the US head of delegation here, was seen for much of the past few days walking in circles near the tea bar on his mobile phone to Washington. He told me: “We don’t like this text, but we can live with it.”
The key to US agreement was the positioning of the Loss and Damage mechanism under an existing process promising to mobilize $100 billion a year for poor nations to adapt to climate change.
Facing tough budget decisions at home over the “fiscal cliff” it was essential for the US to avoid the impression that it was giving away more cash at this time.
The UK Climate Secretary, Ed Davey, told me: “We haven’t agreed to set up a new institution – and there’s no blank cheque. But there is clearly an issue if, say, an island state is lost underwater.”
Ronny Jumea, from the Seychelles, told rich nations earlier that discussion of compensation would not have been needed if they had cut emissions earlier.
“We’re past the mitigation [emissions cuts] and adaptation eras. We’re now right into the era of loss and damage. What’s next after that? Destruction?” he said.
The US has been blamed on finance and on failure to cut its emissions more aggressively.
The EU has also been under fire for failing to raise its promised cuts from 20%, which it is reaching easily, to 30%. (Scientists say it should be 40%.)
The EU has been held back by Poland, which insists on its right to burn its huge reserves of coal.
Warsaw was refusing to sign the extension to the Kyoto climate protocol until it had a reassurance from the EU that it would receive flexible treatment on emissions cuts.
Russia, Belarus and Ukraine then further delayed the endgame of the conference with an argument over so-called “hot air” – the pollution permits they were given to allow their heavy industries to thrive.
Those industries collapsed but Poland and Russia insist that – as they suffered economic pain during the collapse – they should be allowed to use up the pollution permits as their economies grow again.
In effect, they want to be able to increase their emissions as other nations are obliged to cut theirs.
The nature of the Russian objection was unclear, but an EU negotiator told me he believed the Russians were making a point of principle and did not expect further action.
The major task of this two-week conference has been untangling of the diplomatic spaghetti from climate agreements that have grown piecemeal over the past 15 years.
It is widely agreed that a useful house-keeping job was done to help the UN move towards the next phase, which aims at a globally-encompassing agreement.
Preliminary discussions were held on this, and it was quickly evident that making a global agreement fair to all parties will be monumentally difficult.
The talks were chaired by Abdullah bin Hamad al-Attiyah, a former head of the oil cartel Opec.
He was widely criticized for his laid-back style earlier in the week but at the last there was the unlikely spectacle of environmentalists cheering the ruthlessness of the chair in crushing the Russian revolt.
Climate change diplomacy makes strange bedfellows.