Volatiles from leaves

Volatile chemicals are abundant in desert scrub and Mediterranean vegetation. The scented oils evaporating from the leaves of evergreen Mediterranean scrub (such as garrigue, Chapter 2) can make a hillside smell like one big pot pourri, and the sagebrush of the American southwest can also smell rather strong. It is generally thought that these compounds have a protective role in making the plants distasteful or indigestible to grazers. However, some ecologists have suggested that the plants use them for an additional purpose: being kept warmer and frost-free because of the "greenhouse" heat-trapping properties of these chemicals (which strongly absorb infra-red light). However, atmospheric physicists calculate that the "heat-trapping" effect of these chemicals is probably not strong enough to make any significant difference.

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Renewable Energy Eco Friendly

Renewable Energy Eco Friendly

Renewable energy is energy that is generated from sunlight, rain, tides, geothermal heat and wind. These sources are naturally and constantly replenished, which is why they are deemed as renewable.

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