The United Nations estimates that 2.2 billion people lack safely managed drinking water, and communities from California to ...

"They need to erect enormous solar walls around train tracks." ...

Two 150 mL cylindrical glass chambers sit on a ledge outdoors. Inside each chamber is an electrode submerged in a cloudy tan liquid. The electrodes are connected to a solar panel sitting behind them.

Solar-powered tube wells drive increased irrigation, expanding fields of thirsty rice crops Development coincides with rapidly depleting water tables in Pakistan's bread basket Farmers financially ...

Solar power can definitely save you money, but it requires a different mindset than with typical grid AC. Here's why.

Plug-in solar panels can be fitted to balconies, walls and gardens, but safe installation depends on the right location, ...