1alt. Tropical timber means non coniferous tropical wood for industrial uses, which grows or is produced in the countries situated between the Tropic of Cancer and the Tropic of Capricorn.

So his thought was that flooding in the north of Africa actually brought those coniferous trees down tens of thousands of years ago, and what resulted was this remarkable adaptation to this unique desert environment.

1. Tropical timber means non coniferous tropical wood for industrial uses for commercial uses , which grows or is produced in the countries situated between the Tropic of Cancer and the Tropic of Capricorn , whose area of natural distribution is restricted to this geographical limit .

For example, the Republic of Korea estimated that its forests would begin to decline within 30 years, culminating in severe damage after 100 years, and Azerbaijan indicated that the total area of coniferous forest is expected to decrease by 2.5 per cent under a scenario of doubled CO2 concentration in the atmosphere.

I spoke to a biologist at the Kirstenbosch Botanical Garden in Capetown to ask him where he thought this remarkable plant came from, and his thought was that if you travel around Namibia, you see that there are a number of petrified forests, and the logs are all the logs are all giant coniferous trees, and yet there's no sign of where they might have come from.