Yes, Only people have the capacity to alter the environment at will. Only people have minds to develop Intelligent approaches to environmental problems.
No, I don't think there is a carrying capacity for humans. Humans, like all organisms, can only sustain themselves and their populations by having access to the products and services of their environment, including those of other species and ecosystems. However, humans are clever at developing and using technologies; as a result they have an unparalleled ability to manipulate the carrying capacity of the environment in support of their own activities.
Humans only use about 20% of the muscles capacity
Polymers can release reactants that are harmful to humans. Not only can they harm humans, but they can harm the environment as well.
by eating only plants
size of the brain has nothing to do with intelligence. only the capacity of the neurons
By eating only plants.
By eating only plants.
Carrying Capacity !
its doesnt help... it only destroys... much like humans.
By eating only plants.
only slightly because we exhale co2 but trees absorb most of that.
only slightly because we exhale co2 but trees absorb most of that.