Archive for May, 2011

Awareness – To Protect Our Planet I

May 31, 2011 24 comments


We alway hear it, “We need to Reduce Carbon Dioxide (CO2)”,  “We have to Save our Earth” and etc.  By the way, do you know what is CO2What CO2 does on our WorldWhat can we do?


Coal Power Plant Emitting Carbon Dioxide


What is Carbon Dioxide
Carbon dioxide (CO2) is a naturally occurring chemical compound composed of two oxygen (O) atoms covalently bonded to a single carbon (C) atom. It’s a gas at room temperature & pressure and exists in Earth’s atmosphere as a trace gas at a concentration of 0.039% by volume.

As part of the carbon cycle known as photosynthesis, plants, algae, and cyanobacteria absorb CO2, sunlight, and water to produce carbohydrate energy for themselves and oxygen (O2) as a waste by-product. By contrast, during respiration we emit CO2, as do all other living things that depend either directly or indirectly on plants for food.


Volcano is a source of CO2 gas


CO2 is also generated as a by-product of combustion; emitted from volcanoes, hot springs, and geysers; and freed from carbonate rocks by dissolution.


Volcano releasing sulfur and CO2 gas


Hot Spring emitting CO2 gas


Geysers releasing CO2 gas


What CO2 Does On Our World
1.  CO2 are absorbed in huge quantities into the ocean and makes it more acidic, e.g. corals die out as they loose their habitat.

2.  It changes the weather patterns because of the increased temperatures, e.g. more storms, less predictable weather, agricultural failure, famine & etc.

3.  More heat is trapped on the planet – Global Warming.  A series of changes will occur over the next decades.

a.  If the world gets warmer, the sea levels will rise as the polar ice melts and the sea expands.

b.  Sea levels will rise and millions of people will be displaced.

c.  Animals will loose their natural habitat and possibly go extinct.

CO2 equivalent is a measure used to compare the emissions from various greenhouse gases based upon their global warming potential.

Carbon Footprint is a measure of the greenhouse gas emissions, in CO2 equivalents, that are directly and indirectly caused by an activity or are accumulated over the life stages of a product / service.

For Example:

Eat 1 Banana = release Carbon 80g to atmosphere

Hand Drying = release Carbon 10g for 1 hand tissue use or 20g for hand dryer use

Coffee / Tea = release Carbon
•  21g (without milk + hot water)
•  53g (with milk + hot water)
•  71g (with milk + 2 times of hot water)
•  235g (big cup of cappuccino)
•  340g (big cup of latte)

Bicycle – ride bicycle in 1.6km release Carbon
•  65g if you get energy from banana
•  90g if you get energy from cereal with milk
•  200g if you get energy from bacon
•  260g if you get energy from cheese burger
•  2,800g if you get energy from asparagus imported from airfreight

Mobile Phone = release Carbon
•  47kgs per year for mobile phone use with less than 2mins per day
•  1,250kgs per year for 1 hour use a day
•  125 million tons per year for mobile phone use in worldwide
•  0.014g per message (140characters in 1min typing)
•  32,000 tons per year for SMS sending in worldwide

Computer = release Carbon
•  200kgs for notebook
•  720kgs for iMAC 21.5”
•  800kgs for PC
•  12g per hour for energy saving notebook
•  63g per hour for iMAC 21.5”
•  150g per hour for PC use
•  Plus 50g per hour when connect to server / network

What Can We Do?
Example of Emission reduction options
•  Travel less often
•  Have some plants around our house
•  Only on the Air-con when the weather is extremely hot
•  Switch to renewable energy
•  Introduce hybrid vehicles
•  Use less paper
•  Develop & implement a green procurement plan

Do your part to save Mother Earth.  Gaia need your help.


Link: Awareness – To Protect Our Planet II (Global Warming)

Link: Awareness – Drinking Water

Link: Awareness – 起云剂 vs. 塑化剂


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