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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]
Amazon rainforest in Colombia Aerial view of the Amazon rainforest, near Manaus The rainforest likely formed during the Eocene era (from 56 million years to 33.9 million years ago). It appeared following a global reduction of tropical temperatures when the Atlantic Ocean had widened sufficiently to provide a warm, moist climate to the Amazon basin.
Amazon River rain forest in Peru. Tropical rainforests are hot and wet. Mean monthly temperatures exceed 18 °C (64 °F) during all months of the year. [4] Average annual rainfall is no less than 1,680 mm (66 in) and can exceed 10 m (390 in) although it typically lies between 1,750 mm (69 in) and 3,000 mm (120 in). [5]
In northern Idaho rainforest patches along the Clearwater River, a mean annual temperature of 5.4°C has been measured. [8] In British Columbian Inland rainforest areas, the mean annual temperature ranges from 2.7 to 4.5°C. In the coldest months, the mean temperature of these region lies between -8 and -9.5°C. [9]
Scientists estimate that more than half of all the world's plant and animal species live in tropical rainforests. Tropical seasonal forests , also known as moist deciduous , monsoon or semi-evergreen (mixed) seasonal forests, have a monsoon or wet savannah climates (as in the Köppen climate classification ): receiving high overall rainfall ...
A tropical rainforest climate or equatorial climate is a tropical climate sub-type usually found within 10 to 15 degrees latitude of the equator. There are some other areas at higher latitudes, such as the coast of southeast Florida, United States, and Okinawa, Japan that fall into the tropical rainforest climate category.
Andes to Amazon is one of four series which comprise the Region 1 DVD box set BBC Atlas of the Natural World: Western Hemisphere released on 31 October 2006. The accompanying book, Andes to Amazon: A Guide to Wild South America by Michael Bright, was published by BBC Books on 2 November 2000 in a hardcover edition ( ISBN 0-563-53705-1 ) and on ...
Rainforests are disappearing across the world, and at an alarming rate in Brazil. Since the 1980s, more than 153,000 square miles of Amazonian rainforest has fallen victim to deforestation. [ 6 ] Brazil has helped feed the growing global demand for food supply of soybeans and beef with the newly cleared land. [ 6 ]