The glaciers are melting, the sea level rises, and many studies show clearly that the climate will change dramatically in the coming decades. Yet there are success stories that might be useful. Many problems waiting to be tackled it. The rain ...

The disposal of the huge mountains of waste that are produced at the churning of the human civilization is one of the greatest unsolved problems. Of course, nowadays already recycled, wherever possible, or obtained by the combustion of waste energy. ...