Greenhouse gases pose a very real and significant threat to the world ecosystems. Greenhouse gases are gases present in the atmosphere that have a greenhouse effect, trapping heat in the atmosphere and close to the surface of the earth rather than allowing the heat to go back into space. Emissions of greenhouse gases can be a result of burning fossil fuels, and also of the pollution of the air from many different chemicals. This causes the air in the atmosphere to stay warmer, and can have a big effect on all the ecosystems of the world.
Global warming due to increased greenhouse gases has already had a big impact on the earth and many of the ecosystems. The weather around the world is slowly warming, and tropical storms, devastating hurricanes, typhoons, and other severe weather patterns are on the rise. The climate and temperature of areas are changing, leading to an increase in unknown and unusual bacteria and viruses to be found. This can be a very serious problem, because viruses common in one area that could not thrive in another may suddenly find conditions more hospitable. This can lead to a global threat that is worldwide from diseases now only seen in remote areas.
