For China, India, and many other rapidly-developing countries, water scarcity will increasingly and negatively affect growth-with 2.7 billion people living in water scarce basins in these countries alone by 2050, up from 1.4 billion today.
Replace window putty if it has become old and cracked. Window putty commonly is referred to as glazing compound. It is made to remain semi-flexible throughout its lifetime, so it both firmly holds the glass in place and keeps the edges of the glass leakproof. Properly installed putty looks like an extension of the window frame, and can be painted to match.
Putting bubble wrap on your windows is a snap. (or a pop.) It will take you less than a minute to insulate one window. You will need a spray bottle, an exacto knife and some bubble wrap. Mist the water onto your window. Push the bubble side of the wrap against the window. The water will hold the bubble wrap to the window all winter. You will need no tape or glue. Use the exacto knife to cut away any excess. The bubble wrap will not stain your windows. A single pane window has an R value of less than one.