The biotic pump: Who first proposed this theory? How does it work? What do other scientists think about it? Do forests grow where it rains or does it rain thanks to forests?
Desert reclamation techniques
Currently what are we doing to reduce deserts.Can the processes of desertification be reversed? Controling sand dunes, adding oil, spreding seeds etc.
Cedars of Lebanon explain the biological and historical properties of this tree. Empires from the Phoenician for their ships to the British for their railroads have made extensive use of this tree.
Give a guided tour of a water desalination plant. How do they work? Where are they used?
How expensive are they? Could they change a climate? Are there drawbacks?
How does Soil Geology change in forests, deserts etc. Hydrology, rhizomes etc We use soil for many things but do not consider its slow formation and possible rapid loss.
Artificial rain or cloud forest created on Ascension Island with the support of Charles Darwin. What is the extent of this rainforest and how many people now live on the island? etc.
Consider: the history of Rapa Nui or Australia. Does any alien invader cause havoc to an ecosystem? Could the Sahara itself be an artifact of agriculture?
There seems to exist already water wars in this region with
The western Sahara with Polisario Front & SADR to the Sudan. The Arab spring has proven that nothing is simple in this region of the world.
What are the chemical
and biological aspects of a desert
biome? how do they compare to forests and prairies?
Climate changed the face of North Africa quite recently. What did this land look like in the past? What does the timeline look like? Where and what civilizations existed then?