The effects of global warming
on insects and bacteria


Glaciers melting as a result of global warming will lead to Excessive rainfall and run-off, which in turn can lead to large numbers of micro-organisms entering drinking water. This will mean that outbreaks of water-borne diseases will increase.

Food-poisoning bacteria grow best when the temperature is in the range of about 35-37°C. Scientists believe that if temperatures rise under global warming, the number of diseases caused by food-poisoning and by the contamination of drinking (and swimming) water could increase dramatically.

Many infectious diseases are dependant on vector organisms. The vector organism is the micro organism that transmits parasites, viruses or bacteria from one host to another. These vector organisms are sensitive to enviromental changes and this means that the spread rate of contagious diseases will increase.

Because the life cycle of the mosquito that transmits malaria and the micro-organism that causes the disease are extremely sensitive to changes in temperature, some scientists have speculated that rising temperatures may be making conditions more favorable for mosquitoes and pathogen development (an organism that causes disease in another organisms), leading in turn to the surge a surge in malaria cases.

Because of the rise in temperature, vectors and their pathogens can transmit their diseases more quickly and more effectively, making for a potentially devastating rise in disease. Global warming has many dangerous aspects, this being one of the most prominant and yet one of the most overlooked.