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In the United States, the inland rainforest regions are also classified as significant habitat types for western redcedar and western hemlock. [20] Because of their humid climate, the inland rainforest patches support the establishment of oceanic species that would typically be expected to grow in maritime and coastal environments.
The Appalachian temperate rainforest has a cool and mild climate and meets the criteria of temperate rainforests identified by Alaback. [1] Temperature and precipitation are extremely variable with elevation, with rainforest conditions usually but not always concentrated around spruce–fir forests at higher elevations.
The Environmental Education Act of 1970 [15] led to the creation of the Office of Environmental Education in the U.S. Environmental Protection Agency, [16] and the following year the organization which became the current day North American Association for Environmental Education was founded, [17] and which has a number of affiliates [18] in ...
In addition, Puerto Rico contains El Yunque National Forest, the only tropical U.S. rainforest. Alaska has the most national forest land, with 21.9 million acres (8.9 million ha), followed by California (20.8 million acres, 8.4 million ha) and Idaho (20.4 million acres, 8.3 million ha).
Tropical rainforests have been called the "jewels of the Earth" and the "world's largest pharmacy", because over one quarter of natural medicines have been discovered there. [2] Rainforests as well as endemic rainforest species are rapidly disappearing due to deforestation, the resulting habitat loss and pollution of the atmosphere. [3]
About half of the world's tropical rainforests are in the South American countries of Brazil and Peru. Rainforests now cover less than 6% of Earth's land surface. Scientists estimate that more than half of all the world's plant and animal species live in tropical rainforests.
The Amazon rainforest is a massive area, twice the size of India and sprawling across eight countries and one territory. The Amazon biome has lost more than 85 million hectares (211 million acres ...
It has been estimated that before European settlement, forests in the United States mainland covered nearly 1 billion acres (4,000,000 km 2). [1] Since the mid-1600s, about 300 million acres (1,200,000 km 2) of forest have been cleared, primarily for agriculture during the 19th century.