Devastation could arise insidiously, rather than suddenly, through unsustainable pressure on energy supplies, food, water and other natural resources. Indeed, these pressures are the prime 'threats without enemies' that confront us.

Some global hazards are insidious. They stem from pressure on energy supplies, food, water and other natural resources. And they will be aggravated as the population rises to a projected nine billion by mid-century, and by the effects of climate change. An 'ecological shock' could irreversibly degrade our environment.

Water is unquestionably one of the most important natural resources and is essential for sustaining life.

It is only through developing and maximizing all its natural resources that a sustainable future for Africa and its people can be secured.

We have more natural resources - coal, oil, wind - across the board not only to be energy independent but to be a leading exporter.

Our livelihood is intimately tied to the food we eat, water we drink and places where we recreate. That's why we have to promote responsibility and conservation when it comes to our natural resources.