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Articles on Geothermal energy

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CSIRO is contending with a A$111 million hit to its budget over four years. Bidgee/Wikimedia Commons

CSIRO risks backing the wrong horse as it reacts to budget cuts

What happens to CSIRO when the federal government decides to strip away A$111 million over four years from its A$733 million annual contribution to the organisation’s budget? We are beginning to find out…
Getting into hot water - one of Iceland’s geothermal power plants. Gretar Ívarsson

Drilling surprise opens door to volcano-powered electricity

Can enormous heat deep in the earth be harnessed to provide energy for us on the surface? A promising report from a geothermal borehole project that accidentally struck magma – the same fiery, molten rock…
Deep underground the coal is off - but the heat is still on. Ashley Dace

Underground water heat will aid bid to hit renewable targets

Solar and wind power rightly receive a lot of attention as we struggle to ramp up renewable electricity and move away from fossil fuels. But in a damp, blustery island such as ours, generating heat is…
The Champagne Pool at Wai-O-Tapu, New Zealand: hot water for free. Rebecca Naden/PA

Tapping into the energy that lies deep underground

Geothermal energy is derived from heat produced by the decay of radioactive elements within the Earth’s molten core, where temperatures reach 6000°C around 6000km below the ground. This heat naturally…
With improvements in enhanced geothermal systems technology the earth’s heat could become a major electricity generator. Flickr/xavierbt

Explainer: what is geothermal energy?

Geothermal means, literally, “earth heat”. The temperature of the earth increases as we drill deeper towards its core. We can use that heat for energy by circulating water through hot subterranean reservoirs…
The earth’s crust might be our most valuable resource yet. prawnpie/Flickr

Earth’s most valuable resource is the space between the sand

For centuries, the shallow parts of the earth’s crust have provided us with fuels to burn in our fireplaces, foundries and generators. Now, as we try to break free from our reliance on some of the dirtier…

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