Instant Expert
Geothermal energy
Saturday, 27 December 2008The word 'geothermal' refers to heat underground. This type of heat can be harnessed as a renewable way to generate electricity.
Desalination
Friday, 19 December 2008Desalination is a method of turning salty, brackish, or recycled water into drinkable fresh water. It is a common practice in very dry countries, where for many communities it may provide the only reliable source of potable water.
E-Waste
Friday, 12 December 2008Have you ever given thought to the last time you upgraded your old mobile phone, printer, television or computer? Did you consider what would happen to those items after they were thrown out?
Photovoltaic cells
Monday, 1 December 2008Photovoltaics is the technology for building solar cells and making solar energy. In fact a photovoltaic cell (PV cell) and a solar cell are the same thing
Fair Trade
Thursday, 20 November 2008Fair trade is about ensuring fair prices, fair terms of trade and decent working conditions so that farmers and workers can achieve sustainable livelihoods.
Wind power
Thursday, 13 November 2008Basically, wind power is a form of renewable energy, a way of generating electricity without burning fossil fuels but using the flow of air instead.
Kangaroo meat
Friday, 7 November 2008It's a touchy issue to eat our national icon, but what does the evidence say?
What is Peak oil?
Wednesday, 5 November 2008Peak Oil gives an indication of how the world's oil stocks are going. It is not about how much oil is left, but how easy it is to get at that oil.
Standby power
Friday, 31 October 2008Also known as 'phantom power' or 'idle current', standby power refers to the "invisible" energy used by an electronic appliance while plugged in but not in operation.
Endangered species list
Friday, 10 October 2008Many different animal species are threatened with extinction. But how do scientists decide which species are more at risk - a frog in America or a shark off the coast of Australia?
