With demand for fruit and vegetables increasing all over China, greenhouses have made an appearance in more unlikely, cold weather areas such as Lishi county in the mountain areas of Shanxi. However, the water available for irrigation in these areas is often too cold to for the purpose (below 10 degrees). Professor Fan Guishang with a team of students from from Tanjuan University of Technology have developed a simple, effective system of heating the water diverted to the greenhouses. This involves drawing water fr... »»
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Harvesting water from road runoff when it rains-- this is happening for real in Tigray, Ethiopia.
|We mine sand for use in construction, making cosmetics, producing glass, and much more. We mine sand like it is abundant and plentiful. "Far from truth," says researcher Kiran Pereira. And let's not forget sand's crucial role in the ecosystem.|
|"It's all politics!" is a common refrain. "Politics is a dirty word" is another. But maybe the blackbox of politics can be broken down into nuts and bolts, and used as a tool to do good: to manage groundwater better.|
|Remembering Ahmed Motehar, who pioneered commercial cactus cultivation in Yemen 40 years ago. The idea is now more relevant than ever.|
|Groundwater is key to safe, reliable water supply in many regions of the world. There is a strong case for hydrogeologists and WaSH professionals to work more closely.|
|Vegetable oil cans labelled 'USA' are residues of food aid that came into Ethiopia for several decades. Local artisans now fashion them into a variety of appliances.|