But rich countries are responsible for the bulk of past emissions: US emissions are currently more than 20 tonnes of CO2 equivalent per annum, Europe's are 10-15 tonnes, China's five or more tonnes, India's around one tonne, and most of Africa much less than one.
At a growth rate of 2percentt per annum, South Africa's projected aquatic production in 2015 will be in the region of 5 435 tonnes and requires 2 517 tonnes of aquafeed.
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"The UK berry industry grows by at least 8% per annum and this [the government's plan] will not sustain a standstill, let alone growth". Figures from the Department for Environment, Food and Rural Affairs suggest those fears have not yet been realised.
An exception is zakat, or the giving of a small percentage per annum of one's possessions to charity.
After all those exertions and after intermission, Mr. Pärt's "Annum per Annum" (1980) for organ cleared the air with its blessed simplicity.
The fact is, we haven't even spent anything like 1%, or £14bn per annum, since Stern's report was published, and every pound we don't spend in one year is carried forward to the next.
Support from the FIT for micro-CHP at 15p per kilowatt hour could mean a saving of up to 10 million tonnes of CO2 per annum from Britain's buildings by 2020.
Lest I make the Economist writers sound too simplistic, let me point out that they also adduce all sorts of other factors to explain how the 9 billion earthlings of 2050 will be living happily with an average income of $20,000 per annum (by today's standards).
For instance, it contributed 33 49% per annum of Ghana's foreign exchange earnings between 2000 and 2011 (GCM, 2014).
