Impact of human activity on the natural environment
As global population grows it puts pressure on the environment leading to water shortages and pollution, deforestation and famine. Responsible management strategies can reduce human resource abuse.
Equatorial climate
Location
Equatorial or tropical rainforests are found near the equator. Places which experience an equatorial climate include parts of:
- Central America, eg Costa Rica.
- South America, eg Brazil.
- Central Africa, eg Kenya.
- South-east Asia, eg Borneo.
Description of the equatorial climate
Rainforests are located in the equatorial climate region. They are hot and wet all year round and this creates a humid climate.
The annual rainfall is high as it rains almost every day. The temperatures are constant all year round and the range is usually only a few degrees. There are no seasons.
The climate graph shows average rainfall and temperatures in Manaus, located in the Amazon rainforest in Brazil. The highest monthly rainfall is in March with over 300 mm and the lowest rainfall occurs in August with under 50 mm. Temperatures vary little throughout the year. The highest monthly temperature is 28°C which occurs in September. The lowest monthly temperature is 26°C which occurs in the December and January. So, the annual temperature range is 2°C.
Natural balance - threats to the rainforest