Many people have no idea of the organism that has the most influence on humans (besides other humans). This organism is bacteria. Bacteria have literally shaped the way man kind lives, as well as threatens our future. In 1928 Penicillin, a mold that could destroy bacteria was discovered by Alexander Fleming. It was then popularly used in the 1940's and World War II to combat bacteria, soon after its overuse some bacteria became penicillin resistant. This has become a major issue in the modern medicine system. Bacteria are also threatening much of Maine and northern New England's economy.
Ocean acidification is a rising problem on Earth. It is a term used to decribe the rising acidity in the oceans. 1/3 of the carbon dioxide we edmit from burning ficil fuels is absorbed by the oceans. This equals to 1 million tones every day. When the carbon dioxide disolves into the sea water, the H2O and CO2 molecules combine forming carbonic acid (H2CO3). This changing chemistry is causing our oceans to become more acidic. Over the past 200 years the acidity has risen by 30%. The pH of the oceans has droped by 0.1 pH units (from 8.2-8.1).