The ecosystem are functional units of interacting biotic, abiotic and culturals components.
The natural ecosystems are open systems where energy and matter are transferred in and out.Unfortunately we've disrupted the balance of transfers across ecosystems boundaries because we are anaware of our impact on nature and we forget that we are an important part of it.
We never refer about our ecological status and our ecological connections have slipped from consciousness.
We simply do not perceive our selves as being part of the natural order of beings.
We care too much about money and we rarelly think about the future of our planet.
We each indirectly partecipate in the custodianship of many ecosystem worldwide trought our commerce, food distribution and use of natural resources.
The world's freshwater ecosystems are so degraded that their ability to support plants and animal life (including humans) is viewed by many as being in peril.
We must learn to become better stewards and managers of ecosystems.
We should use more alternative energy to pollute less iven if they're more expensive than fossil fuels.
A lot of greens are tring to introduce a largest use of alternative energy but i think that everybody in his own should do somthing helpfull for the earth. Barrack Obama, for example, wants to save the world by curbing-carbon-dioxide emission and discourage the use of high carbon fossil fuels. In fact, last year, the House of Representatives voted to erect a "cap and trade" system, which would set a ceiling on such emission and lower it each year.