Refrigerated transport is important in a hot country like South Africa. But the trucks are inefficient and emit large quantities of greenhouse gases. South Africa's agency for standards, the SABS, wants to make them more environmentally-friendly.
Smartphone technology has become a vital tool for Mexican forest rangers working to see the full scope of environmental degradation in the Selva Maya.
Climate change has hit Vietnam hard. The country is beset by storms, floods and droughts. Those living in villages are trying to adapt to the new reality of extreme weather, but it's not easy.
Transporting food is bad for the climate - coolants used to keep fruit, vegetables and meat fresh on the road are worse than CO2 emissions. Now, a South African firm is making the trip from farm to store greener.
Jordan is a country with scarce natural resources. How can they be used more sustainably? Global Ideas take a look.
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