Health Problems
Smoke contains many harmful chemicals, the particles of which can linger in the air for hours. Breathing in smoke can cause numerous health problems and can worsen existing conditions, such as asthma. Lung disease, heart problems and high blood pressure are just a few of the ailments caused by breathing in smoke, whether it's second hand cigarette smoke or exposure to air pollutants.
Smog
The smoke from the exhaust fumes of cars can form smog, which reduces visibility for drivers. Smog usually occurs in big cities where pollution is already a problem. It's caused by a combination of fumes in the atmosphere and hot weather, and it's harmful for people's health as the fumes making up the gas are toxic.
Global Warming
The gases in smoke (carbon monoxide, nitrogen oxide and sulphur dioxide) have contributed to creating a hole in the ozone layer, which has the function of deflecting part of the sun's rays. This hole is causing the phenomenon known as global warming, as the temperature rises, ice caps begin to melt, and the sea level rises. It also means that exposure to the sun's ultraviolet rays (the light that emanates from the sun) is becoming more dangerous as they become more intense, which can cause sunburn and other long term problems.
Trees and Plants
Exposure to air pollution can damage the leaves of trees and plants, resulting in loss of water and being made susceptible to disease. This, coupled with the loss of rain forest is a another problem for the environment, as plants are responsible for absorbing carbon dioxide and releasing oxygen into the air.