New York and other cities see a climate fix in white paint, which is coating more rooftops as way to cool buildings and cut energy use. They may soon have another option: paint made of glass.

While painting such surfaces white is one approach, a scientist at Johns Hopkins University has developed another – reflective paint made from glass ... to give it color and to boost its ...

Cut your bottles using a bottle cutter and then paint them in a rainbow of colors. Once they're dry, simply light your tea lights and place the glass bottles on top for a simple decoration.