The Green Gap

In the Cold War, we feared a Missile Gap was a strategic weakness. Nowadays, we must awaken to the fact that the Green Gap is true strategic weakness: the nations whose economies will thrive in the coming years will not be those with the biggest factories, but those with the most sustainable, efficient, and ecological markets. What we require is a Strategic "Green Reserve" of ecological design to weather the coming changes that both climate and resource scarcity will force on the international economy.
Showing posts with label water. Show all posts
Showing posts with label water. Show all posts

Thursday, 3 May 2012

Mulching

Here is a shot of some okra in the home-made mulch from our shredder.
Mulching, of course, is highly useful. In our case, we have a confluence of two very important factors that make me believe mulching is an optimal practice for our yard. First, it's the dry season. Mulching helps in moisture retention. I dropped this mulch down after a (very rare!) summer rain. Second, our garden is full of palm trees that are regularly shedding lower leaves in their constant struggle to beat other plants to the canopy. This, combined with sticks I steal from the neighbours' garbage heap, coconut husks, and leaves from the bamboo stand, makes a great and varied texture mulch - and keeps that valuable carbon in our ecosystem. Tropical ecosystems seem to shed carbon like mad, but in a natural tropical ecosystem, the decomposers are totally on steroids - they break stuff down real fast. In the gardens in this part of the world, all the hired gardeners are told to do is get rid of the detritus and make it look presentable. The garden slowly sheds all its nutrients and carbon to the garbage heap, leaving a nasty, hard soil. I'm trying to stem that tide and keep the good stuff where it belongs...

...and stealing other people's good stuff from their garbage. Let's face it, I have no shame.

Thursday, 26 May 2011

More on Water

The New Scientist has something to say about water and national policy:

Take Saudi Arabia, for instance. Between 2004 and 2009, it leased 376,000 hectares of land in Sudan to grow wheat and rice. At the same time the country cut back on wheat production on home soil, which is irrigated with water from aquifers that are no longer replenished - a finite resource.

Meanwhile, firms from China and India have leased hundreds of thousands of hectares of farmland in Ethiopia. Both China and India have well-developed irrigation systems, but Woodhouse says their further development - moving water from the water-rich south to northern China, for instance - is likely to be more costly than leasing land in Africa, making the land-grab a tempting option.

The article is a good, short read, but underscores my contention that water and food are strategic resources. This summer, let's see how the Chinese wheat crop fares...