The four alternative energy sources to fossil fuels that I know are : solar energy, eolic energy, hydraulic energy and oceanic energy. The most used in my country is the hydraulic energy. The reason for this is that there are many waterfalls in the rivers that descends from the Pyrenees mountains. This falls can produce electric energy that it's used in all homes for to heat them. Now, in my country all people are thinking about to install solar pannels in their homes, and as a result to save fossil fuels. Eolic energy is begining in my country, but I think it must be used in the future in a lot of places. There are many windy areas in Catalonia. About the oceanic energy, very similar to hidraulic energy but produced with the waves force, I don't know any installation in the Mediterranean Sea.
I think that recycling really save energy and resources. In the last three years I've take the use of recycling glass, plastcs and paper. When I go shoping to the supermarket I take with me a big bag, and I don't use plastic bags from the shops.
Also, whenever I can, I go to work by train, and I leave my car on the station. The result is that I save 80 km.
The last Greenpeace campaign is about the ozone layer protection. They has been making campaign for to explain how dangerous is for humans not to preserve the ozone layer.
In my countru there are some small environmental organizations. They fight to achieve that all human actions are in a good direction for to preserve the environment.