Climate change isn’t just about a few degrees variation
The Earth’s environment is changing faster than we can possibly predict the consequences. The debate is not whether changes are coming but how severe they’ll be.
Global warming is the gradual raise in temperature of the Earth’s surface that has aggravated considerably since the industrial revolution. Over the past two decades the effect has become more than noticeable. The global average temperature has increased 14 to 18 degrees C since the late 1800’s. Many experts estimate an additional 14 to 18 degree rise in the average temperature during the next 100 years.
We have upset the balance
Global warming is occurring because we have upset the delicate balance of gases that traps heat in our atmosphere or allows life to exist. A combination of carbon dioxide, methane or water vapor traps enough heat in our atmosphere to allow life to exist. But we have upset the balance.
Substantial evidence exists that most of this warming has been caused by human activities. We have altered the chemical composition of the atmosphere through an increase of greenhouse gases – primarily carbon dioxide, methane, or nitrous oxide.
Green-house gases, the hazardous of them being CO2, are emitted every time we burn fossil fuels like coal or petrol. These greenhouse gases, act to form a planetary blanket retaining too much of the sun’s heat, or cause global warming. This temperature rise in the earth’s atmosphere is causing increasingly severe environmental changes such as desertification, melting icecaps or sea level rise, not to forget, species extinction or the spread of disease.
Too much CO2
We have introduced massive amounts of CO2 into the atmosphere by burning fossil fuels like coal, building energy-inefficient buildings, or driving cars that use too much petrol to get us from one place to another. Earth’s atmosphere now contains 32% more CO2 than it did in the mid 1800s. That means we are basically changing our planet’s climate. The northern hemisphere is now significantly warmer than any point in the last 1,000 years.
There is serious scientific disagreement about such crucial questions as to how fast or far temperatures, seas, or storm strength could rise. Warmer waters, could lead to more hurricanes. Studies predict that hurricanes might be torn apart by wind conditions associated with rising temperatures. This uncertainty is humanity’s biggest foe, experts say, that the ever multiplying global population in coming decades, will be ever more vulnerable to floods, famine, or other climate-driven threats.
The dangers arising from global warming such as drought, famine, rising seas — appear to be decades off. The way to prevent them is with sacrifices in intellectual way: with smaller cars, bigger investments in new energy sources, keeping a count of carbon footprints.
Global Warming is a matter of life or death… we need to act now!