Evidence of Climate Change

Based on the reports of the National Aeronautics and Space Administration (NASA), for the last century, the sea levels have risen about 6.7 inches. The rate of increase doubled in just the last decade. The global temperature has also risen, and oceans have absorbed much of the heat. These increased water temperatures will eventually lead to stronger and more destructive weather patterns.

Greenhouse Gas Emissions – The Major Culprit

The gases that trap the heat in the atmosphere are referred to as greenhouse gases. Four major greenhouse gases that are abundant in the atmosphere today are carbon dioxide, methane, nitrous oxide, and fluorocarbons. There are naturally occurring greenhouse gases because they are potentially essential to keep the earth’s temperature warm. However, manmade activities have increased the number of these gases, resulting in more heat getting trapped in the atmosphere. Among these gases, carbon dioxide has the highest concentration in the atmosphere.

Carbon Dioxide

Burning fossil fuels like oil, coal, and natural gas emits carbon dioxide in the air. Major contributors include cars, factories, electricity generating plants, and deforestation. Trees do not emit carbon dioxide, but actually use it. Fewer trees equals a greater amount of carbon dioxide in the atmosphere. In other words, every time trees are cut down and not replaced, the reduction potential for greenhouse gas emissions decreases.

Methane

Methane traps more heat in the environment than even carbon dioxide. This gas is usually the result of the breakdown of organic matter, like raising livestock. Drilling, coal mining and landfills are among the major sources of methane in the atmosphere. This gas can last in the atmosphere for 10 years. Fortunately, many landfills are now trapping methane gas in an attempt to use it as a renewable energy source.

Nitrous Oxide

Nitrous oxide has similar properties as carbon dioxide. Automobiles, burning of solid wastes, agricultural and industrial activities produce this gas. One way that we can minimize its presence is to opt for compost instead of nitrogen-based fertilizers. This harmful gas can last for 100 years, more than the lifespan of an average human.

Fluorinated Gases

Flourinated gases are potent gases released from various industrial processes such as aluminum production, magnesium production and semiconductor manufacturing. Due to their powerful nature, they are also called High Global Warming Potential (high GWP) gases.