A significant milestone has been passed:
Global carbon dioxide levels break 400ppm milestone
Concentrations of CO2 greenhouse gas in the atmosphere reached record global average in March, figures show, in a stark signal ahead of Paris climate talks
Record carbon dioxide (CO2) concentrations in the atmosphere were reported worldwide in March, in what scientists said marked a significant milestone for global warming.
Figures released by the US science agency Noaa on Wednesday show that for the first time since records began, the parts per million (ppm) of CO2 in the atmosphere were over 400 globally for a month.
The measure is the key indicator of the amount of planet-warming gases man is putting into the atmosphere at record rates, and the current concentrations are unprecedented in millions of years.
The new global record follows the breaking of the 400ppm CO2 threshold in some local areas in 2012 and 2013, and comes nearly three decades after what is considered the ‘safe’ level of 350ppm was passed.
What I don’t understand about our collective inability to address climate change is that even if you’re not interested in leftie issues like saving the environment, the future for our children and so on, then right wing thinking should lead you to action anyway. Action to reduce climate change makes sense in purely economic terms, see the Stern Review, or see this recent “local” example:
Severe heat costs the Australian economy US$6.2 billion a year
Heat stress costs the Australian economy a whopping US$6.2 billion a year – a finding that shows what other countries might be facing in areas where global warming will make extremely hot days more common.
Kerstin Zander from Charles Darwin University in Darwin, Australia, and colleagues surveyed 1726 employed people to map the impact of hot weather on the economy.
People reported taking an average of 4.4 days a year off work because of heat stress. And 70 percent of respondents said heat had made them less productive on at least one day in the past 12 months, with a third saying it often did so.
Delving deeper into the results, the team calculated that heat-related absenteeism was costing the country US$845 per head of population per year. The figure for loss of productivity at work was even higher at US$932.
Together, that amounts to roughly 0.4 per cent of Australia’s GDP. That’s greater than the cost for Australia to cut its net carbon emissions to zero by 2050, estimated at as little as 0.1 or 0.2 percent of its GDP.
Prediction – nothing significant will come out of the Paris talks.