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Trees feature in many of Ursula K. Le Guin's books, including the forest world of Athshe and the Immanent Grove [88] on Roke in the Earthsea series, to such an extent that in her introduction to her collection The Wind's Twelve Quarters, she admits to "a certain obsession with trees" and describes herself as "the most arboreal science fiction ...
Human uses of plants include both practical uses, such as for food, clothing, and medicine, and symbolic uses, such as in art, mythology and literature. Materials derived from plants are collectively called plant products .
Scientific studies show that street trees help cities be more sustainable, and improve the physical and mental wellbeing of the citizens. [149] It has been shown that they are beneficial to humans in creating a sense of well-being and reducing stress.
Some trees can live 1,000 years providing many services to humans. Help to protect people from floods and droughts. Primary Tropical Forests: 471 billion tonnes (more than all CO2 emissions from fossil fuel industry from the year 1750) Contain about two thirds of all species of terrestrial animals and plants. Creates clouds, rainfall.
In addition, some charities plant fast-growing trees to help people in places with less tree coverage to restore the productivity of their lands. [73] Individuals can also plant home vegetable gardens that provide locally grown food, native plant gardens that provide a diversity of species, and trees and perennial shrubs that develop ...
The Treasure Valley Canopy Network has free and discounted trees, which people can apply for and receive trees to cool down their property, Hanson told the Statesman.
Although about 80 percent of humans' food supply comes from just 20 kinds of plants, [159] humans use at least 40,000 species. [160] Earth's surviving biodiversity provides resources for increasing the range of food and other products suitable for human use, although the present extinction rate shrinks that potential.
Ecosystem services are the various benefits that humans derive from healthy ecosystems. These ecosystems, when functioning well, offer such things as provision of food, natural pollination of crops, clean air and water, decomposition of wastes, or flood control .