Showing posts with label CFC's. Show all posts
Showing posts with label CFC's. Show all posts

Thursday, 15 October 2015

What is Greenhouse effect?

‘Greenhouse Effect’ is the process by which radiation from a planet's atmosphere warms the planet's surface to a temperature above what it would be in the absence of its atmosphere. https://en.wikipedia.org/wiki/Greenhouse_effect

An example:  a car parked outside on a cold, sunny day. Incoming solar radiation warms the car's interior, but outgoing thermal radiation is trapped inside the car's closed windows.

So Greenhouse effect is the exchange of incoming and outgoing radiation that warms the Earth.  www.mother-nature-blog.com

“There's a delicate balancing act occurring every day all across the Earth, involving the radiation the planet receives from space and the radiation that's reflected back out to space.

[Earth is constantly bombarded with enormous amounts of radiation, primarily from the sun. This solar radiation strikes the Earth's atmosphere in the form of visible light, plus ultraviolet (UV), infrared (IR) and other types of radiation that are invisible to the human eye.]

It's this equilibrium of incoming and outgoing radiation that makes the Earth habitable, with an average temperature of about 59 degrees Fahrenheit (15 degrees Celsius), according to NASA.” http://www.livescience.com/37743-greenhouse-effect.html

However, due to increased levels of carbon dioxide, CFCs, and other pollutants in the atmosphere, this balance has been disturbed, leading too…

‘Global warming’ taking place – which is a gradual increase in the overall temperature – that is…the gradual heating of Earth’s surface, oceans and atmosphere.

What is CFC’s? (Chlorofluorocarbon)
“Any of a class of compounds of carbon, hydrogen, chlorine, and fluorine, typically gases used in refrigerants and aerosol propellants. They are harmful to the ozone layer in the earth's atmosphere owing to the release of chlorine atoms on exposure to ultraviolet radiation.” https://www.google.co.za/?gws_rd=ssl#safe=active&q=what+is+cfc






Sunday, 4 October 2015

WHY DO WE NEED TREES?


WE LITERALLY COULDN'T SURVIVE WITHOUT TREES!

  •  Humans and animals inhale oxygen and exhale carbon dioxide
 Trees and other plants inhale carbon dioxide and exhale oxygen
So Trees, through their leaves, take in carbon dioxide from the air, use it to make the sugar that is their food, and release gases they don’t use back through their leaves- OXYGEN!
This process called ‘Photosynthesis’ is the most important chemical reaction occurring on Earth!




By cutting down trees, we are literally destroying the existence of life on Earth!
WHAT IS GLOBAL WARMING?
Global Warming is the increase of Earth's average surface temperature due to effect of greenhouse gases, such as carbon dioxide, CFCs and other pollutant, emissions from burning fossil fuels and from deforestation, which trap heat that would otherwise escape from Earth. This is a type of greenhouse effect.
By increasing the heat in the atmosphere, greenhouse gases are responsible for the greenhouse effect, which ultimately leads to global warming.
SO… WHY DO WE NEED TREES?
1.  Trees Produce Oxygen
2.  Trees Clean the Soil
Trees absorb dangerous chemicals and other pollutants that have entered the soil. Trees can either store harmful pollutants or actually change the pollutant into less harmful forms. Trees filter sewage and farm chemicals, reduce the effects of animal wastes, clean roadside spills and clean water runoff into streams.
3.  Trees Control Noise Pollution
5.  Trees Are Carbon Sinks
To produce its food, a tree absorbs and locks away carbon dioxide in the wood, roots and leaves. Carbon dioxide is a global warming suspect. A forest is a carbon storage area or a "sink" that can lock up as much carbon as it produces. This locking-up process "stores" carbon as wood and not asan available "greenhouse" gas.
6.  Trees Clean the Air
Trees help cleanse the air by intercepting airborne particles, reducing heat, and absorbing such pollutants as carbon monoxide, sulphur dioxide, and nitrogen dioxide. Trees remove this air pollution by lowering airtemperature, through respiration, and by retaining particulates
7.  Trees Shade and Cool
8. Trees Act as Windbreaks
9.  Trees Fight Soil Erosion
10.  Trees Increase Property Values
 And of course, wood humans need in many otherways as well as providing ingredients for drugs that fight disease andillness.  Oh and what about foods likenuts and fruit and not forgetting flowers…
“FORESTS ARE THE LUNGS OF MOTHER EARTH”
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