Pesticides, lead, contaminated water, mercury, carbon monoxide, tobacco smoke and asbestos are types of environmental hazards that pose health risks. Many people are exposed to environmental hazards at industrial work sites or when using chemicals and appliances in private homes.Continue Reading
Toxic substances typically cause health complications through accidental consumption or inhalation. For example, breathing in a harmful amount of carbon monoxide gas from a home appliance can disrupt brain function and lead to death.
Exposure also occurs when building materials in older homes and buildings begin to break down, releasing noxious waste products. Prior to the 1980s, lead was widely used to make pipes, leading to blood poisoning from contaminated water, toys and food. Similarly, asbestos fibers in old insulation may become fragmented and dispersed in the air, impairing lung function when inhaled.Learn more about Environmental Science
Some dangers of not recycling include the risks to wildlife and natural resources, a decline in the economy and climate issues. By recycling more items, there are less carbon and greenhouse gas emissions, which can help protect the environment and reduce global warming.Full Answer >
Two famous environmental scientists are John Muir, whose work helped create Yosemite National Park, and Rachel Carson, who wrote the book "Silent Springs" about the risks of DDT. Chico Mendes is also well known for his work to save the rain forests in Brazil.Full Answer >
The Kyoto Protocol offers a framework to encourage countries to reduce their carbon emissions before climate change becomes an insurmountable problem, but it contains a number of loopholes and the economic effects can be significant. Several signatories have abandoned the protocol since its ratification, while others refused to join.Full Answer >
The carbon dioxide and oxygen cycles work through processes that convert carbon in the atmosphere into oxygen and transform oxygen back into carbon dioxide. Plants are the main producers of oxygen through a process called photosynthesis. They use carbon dioxide and sunlight to produce energy and release oxygen into the atmosphere.Full Answer >