Critical Thinking October 2009

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Desertec: sustainable solution or a pipe dream
Desertec: sustainable solution or a pipe dream
Deserts receive more energy in six hours than all the people in the world consume in an entire year.
Stone-age air conditioning
Stone-age air conditioning
Property developer Basil Walker's rock store is a highly innovative and energy-efficient model for cooling systems in modern buildings.
Oil at its outer limit
Oil at its outer limit
We're somewhere between the petroleum age and renewables, writes Kevin Davie.
A carbon economy is not viable
A carbon economy is not viable
The experts debate how to deal with carbon footprints and moral panic. Yazeed Kamaldien reports.
End the carbon spending spree
End the carbon spending spree
The world has already spent 40% of its allotted carbon budget since 1990 and has little more than half of what it is allowed to spend until 2100.
Cementing a greener future
Cementing a greener future
Less energy-intensive ways of making concrete are being investigated, writes Lynley Donnelly

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MTN customers to receive extra 50GB of data
Imperial Logistics enters commuter bus business
Managing risk in 2017 and beyond
Small denomination notes for travellers to Zim