This process of combining of water, cement paste, sand and rock creates an awful lot of CO2 gases - which are linked by some scientists to global warming - about five to 10% of the world's total emissions.

BBC: By Ian Hardy

Thus, India's Shree Cement, which has long suffered from water shortages, developed the world's most water-efficient method for making cement, in part by using air-cooling rather than water-cooling.

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The 4-by-6-foot color photograph of a wintry outdoor scene portrays a woman in a fur coat staring up at an apartment building where a water leak has cascaded down the cement facade and hardened into a frozen waterfall.

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Cement is then mixed with water to form this ubiquitous material which shapes our landscapes and cities.

BBC: By Ian Hardy

Many drillers already run cement logs and do pressure tests and store flowback water safely.

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The developers built their own cement works and laid 124 miles of pipe to carry water from the coastal capital to the remote resort.

FORBES: Magazine Article

Algae also offer the potential of aiding in the curbing of CO2 emissions from power stations and cement factories, and in cleaning nitrates and phosphates from agricultural runoff water and effluent from sewage plants, while simultaneously furnishing useful fuels such as biodiesel and ethanol according to how the algae are processed.

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Nearby, across a broad wooden deck that surrounds the cooling water ramp, stands a British Mandate-era lighthouse, erected in 1936, its cement chipped away by the salt air to reveal a crosshatch of bare rebar.

BBC: Cycling the Tel Aviv coast