Aug

31

2010

Polar Ice Caps Melting: A Global Warming Effect

Abgelegt in  global warming

Global warming has been in the news a lot lately. While some people argue whether or not the phenomenon is man-made, the evidence of global warming effects is undeniable.

Polar ice caps melting
According to NASA & The Natural Resources Defense Council, more than 20% of the polar ice cap has melted away since 1979. The melting appears to be accelerating. 19 of the 20 hottest years on record have occurred since the 1980s. The North and South poles feel these global warming effects most acutely – this is reflected in the melting of the polar ice caps and the rapid crumbling of the glaciers. (more…)

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Aug

12

2010

The Greenhouse Effect

The greenhouse effect is fairly basic science, simple enough in principle to explain in elementary science curriculum. Sunlight passes through the transparent glass of a greenhouse roof. When it reaches an opaque surface, some of the energy is converted to heat which cannot escape as readily. As a result, temperatures increase inside the greenhouse. In the model, atmospheric gasses act like a glass roof and elevate the Earth’s temperature. (more…)
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Jul

24

2010

It’s Easy Being Green: A Guide to Renewable Energy and Efficiency

Abgelegt in  energy, sustainability

There is a lot of discussion centered around non-fossil-fuel energy sources and energy efficiency right now. With atmospheric concentrations of CO2 rising to damaging levels, renewable energy might be the best option for reversing the effects of global warning and reliance on fossil fuels. But how does one know how to choose an alternative energy source? (more…)

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Jul

7

2010

Protect our earth: use bicycles instead of cars

Abgelegt in  Mother Earth

A lot of politicians are talking about global warming, its impacts and about several topics which are dealing about human beings who are destroying our planet. But nearly nobody is making clear proposals what to do against these problems. Thirty years ago – some elder still remember – on some Sundays in a month nobody was allowed to drive a. So the “German Autobahns” were empty and ready to use for cyclists and hikers. But this was because of the oil crisis.

(more…)

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Jul

2

2010

How Carbon Dioxide Influences Global Warming

Abgelegt in  global warming

Only in the last 50 years have scientists recognized the link between global warming and carbon dioxide, CO2 for short. Carbon dioxide, along with methane, water vapor, and some other gases care called greenhouse gases, because they have the effect of trapping in heat on the Earth like a greenhouse. In a greenhouse, glass panels allow the heat and light of the sun to enter, but prevent them from escaping, boosting the temperature inside, allowing plants to grow year round despite the conditions outdoors. Similarly, greenhouse gases trap heat from the sun. (more…)

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