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Carbon dioxide levels reach historic high - US monitors
The level of carbon dioxide in the atmosphere has broken above 400 parts per million for the first time in human history.
7.26pm, 10 May 2013
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THE LEVEL OF carbon dioxide in the atmosphere has broken above 400 parts per million for the first time in human history, US monitors announced today, indicating a record level for greenhouse gases.
Climate scientists say that the symbolic threshold should serve as a call for action to begin reversing the damage caused to the environment by human activities and heavy use of polluting fossil fuels.
The Earth has not seen these levels of CO2 in millions of years, long before humans existed, said Bob Ward, policy and communications director at the Grantham Research Institute on Climate Change and the Environment at London School of Economics and Political Science.
“We are creating a prehistoric climate in which human societies will face huge and potentially catastrophic risks,” said Ward.
Only by urgently reducing global emissions will we be able to bring carbon dioxide levels down and avoid the full consequences of turning back the climate clock.
Data showing that the daily average CO2 over the Pacific Ocean was 400.03 ppm as of yesterday was posted online by the National Oceanic and Atmospheric Administration’s monitoring center in Mauna Loa, Hawaii.
A separate monitor at the Scripps Institution of Oceanography in San Diego, California initially reported its May 9 data showing that atmospheric carbon dioxide was at 399.73 ppm, but later revised that to show 400.08 ppm.
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The difference came down to time zone, with NOAA using the universal time clock and Scripps reporting on Hawaii time. When Scripps adjusted its measurements to UTC time, it concurred with NOAA that 400 ppm threshold had been breached.
Michael Mann, director of the Earth System Science Center at Penn State, said the main concern is the speed with which the concentrations of CO2 are rising.
“There is no precedent in Earth’s history for such an abrupt increase in greenhouse gas concentrations,” Mann, who has authored two books on climate change, told AFP.
While living things can adapt to slow changes that took place over tens of millions of years, there is no reason to believe that they – and we – can adapt to changes that are a million years faster than the natural background rates of change.
Mann said the last time scientists are confident that CO2 was sustained at the current levels was more than 10 million years ago, during the middle of the Miocene Period.
Back then, global temperatures were hotter, ice was sparse and sea level was dozens of meters higher than it is today.
“It took nature hundreds of millions of years to change CO2 concentrations through natural processes such as natural carbon burial and volcanic outgassing,” Mann said.
What we are doing is unburying it. But not over 100 million years. We’re unburying it and burning it over a timescale of 100 years, a million times faster.
I’ve found my gp very helpful in this regard , very approachable thank god , tell your friend to go for it , any decent gp should recognise the signs of stress
So funny reading this. I could almost visualise myself in work and anticipate the reaction of me trying to tell my boss no, I’m too busy! But some really good ideas in here that are simple to try. I’m going to try it out tomorrow. Hope it works! If not, there’s always Xanax! ;)
Great article. It’s good to be reminded that we can do something (several things) to help ourselves cope with stressful situations. Thank you for this.
I got stressed reading this. How will I find time to meditate? Switch if the phone? Just thinking about what this guy suggests stresses me. I’m off for a walk to clear my mind
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