Plastics - Good and Bad

Plastic wastes – Reduce, Reuse and Recycle of plastics are essential to make environment greener and safer:

We find considerable growth in use of plastic everywhere due to various beneficial properties of plastics, such as:

(a) Extreme versatility and ability to be tailored to meet very specific technical needs.

(b) Lighter weight than competing materials, reducing fuel consumption during transportation.

(c) Extreme durability.

(d) Resistance to chemicals, water and impact.

(e) Better safety and hygiene properties for food packaging.

(f) Excellent thermal and electrical insulation properties.

(g) Relatively inexpensive to produce.

However, plastics waste creates lot of nuisances and degrade environment in a big way.

• Select packaging materials that are recycled into new packaging – such as glass and paper. If people refuse plastic as a packaging material, the industry will decrease production
• Plastic bags are made from ethylene, a gas that is produced as a by-product of oil, gas and coal production.
• The biggest problem with plastic bags is that they do not readily break down in the environment. It has been found that, the average plastic carrier bag is used for five minutes, but takes 500 years to decompose.
• Plastic bags create visual pollution problems and can have harmful effects on aquatic and terrestrial animals.
• As per statistics, about 80% of post-consumer plastic waste is sent to landfill, 8% is incinerated and only 7% is recycled.
• plastics constitute only about 8 percent by weight or 20 percent by volume of municipal solid waste, their low density and slowness to decompose makes them a visible pollutant of public concern.
• Industrial practices in plastic manufacture can lead to polluting effluents and the use of toxic intermediates, the exposure to which can be hazardous.
• Recycling and re-utilization of waste plastics lead to a reduction of the use of virgin materials and of the use of energy, thus also a reduction of carbon dioxide emissions.
• Plastic wastes – Reduce, Reuse and Recycle of plastics are essential to make environment greener and safer. Lets join hands to reduce the plastic wastes starting from our homes itself.

What is Carbon Foot Print ?

CARBON FOOT PRINT

A carbon footprint is how much carbon goes into the air because of something done by people (not by nature). Doing something that burns fuel will make carbon dioxide gas in the smoke. Carbon dioxide has carbon in it. Just as walking on the sand leaves a footprint, burning fuel leaves carbon dioxide in the air, which is called a carbon footprint.

Where it comes from

Oil, gas, and coal are called "fossil fuels" because they come from fossils of ancient plants and animals. Those plants and animals had carbon in them. So when we burn oil, gas, and coal, the carbon becomes carbon dioxide and goes into the air as smoke. This makes pollution. It also makes the greenhouse effect, which means that carbon dioxide makes the earth warmer, like a greenhouse. A carbon footprint is the carbon dioxide that is put into the air because of a person, a group of people, an event or a product.

News

The words "carbon footprint" are often seen in the news. They are used with the word sustainability, which means that we can keep doing something without making something bad happen. That is, if there is too much of a carbon footprint, then there is no sustainability. People and businesses are often asked to think about how much carbon they are putting into the air, and how this changes the environment and maybe causes global warming. This is often said about traveling by airplane or by car, because burning fuel makes carbon dioxide gas.

RISKS IN MOBILE PHONES

RISKS IN MOBILE PHONES

·        The radiations and microwaves of cell phones affect the human body. It affects the brain, heart, kidney, and hearing sense

·        Entire day excessive use damages the parts of body.

·        Use hands free sets / Speaker phones / headphones

·        Don’t allow the children less than 5 yrs to talk in Cellphones. Bcz, RF signals easily affects them. Use Speaker sets.

·        Long term and frequent use of cell phones which receive and emit radio frequency may be associated with an increased risk of brain tumors,

·        people who have used cell phones for more than a decade may have as much as three times greater risk of developing brain tumors on the side of the head against which they most often hold their phone—an argument for, at the least, shifting ears regularly or, even better, using an earpiece or the speakerphone feature while chatting.

·        "For people who've used their cell phones for more than 10 years and who use their phone on the same side as the tumor, it appears there's an association,"

·        over 60 years a man's risk of developing a brain tumor from cell phone use increases from 0.206 percent to 0.621 percent, and a woman's from 0.156 percent to 0.468 percent.

·        possible link between cell phone and brain tumors to justify both more study and the avoidance of excessive exposure

Mobile phone radiation and health

The effect of mobile phone radiation on human health is the subject of recent interest and study, as a result of the enormous increase in mobile phone usage throughout the world (as of June 2009^[update], there were more than 4.3 billion users worldwide). Mobile phones use electromagnetic radiation in the microwave range. Other digital wireless systems, such as data communication networks, produce similar radiation.

The WHO has classified mobile phone radiation on the IARC scale into Group 2B - possibly carcinogenic. That means that there "could be some risk" of carcinogenicity, so additional research into the long-term, heavy use of mobile phones needs to be conducted.Some national radiation advisory authorities have recommended measures to minimize exposure to their citizens as a precautionary approach.

Effects

Many scientific studies have investigated possible health symptoms of mobile phone radiation. These studies are occasionally reviewed by some scientific committees to assess overall risks. A recent assessment was published in 2007 by the European Commission Scientific Committee on Emerging and Newly Identified Health Risks (SCENIHR). It concludes that the three lines of evidence, viz. animal, in vitro, and epidemiological studies, indicate that "exposure to RF fields is unlikely to lead to an increase in cancer in humans".

Radiation absorption

Part of the radio waves emitted by a mobile telephone handset are absorbed by the human head. The radio waves emitted by a GSM handset can have a peak power of 2 watts, and a US analogue phone had a maximum transmit power of 3.6 watts. Other digital mobile technologies, such as CDMA2000 and D-AMPS, use lower output power, typically below 1 watt. The maximum power output from a mobile phone is regulated by the mobile phone standard and by the regulatory agencies in each country.^{[citation needed]} In most systems the cellphone and the base station check reception quality and signal strength and the power level is increased or decreased automatically, within a certain span, to accommodate different situations, such as inside or outside of buildings and vehicles. The rate at which radiation is absorbed by the human body is measured by the Specific Absorption Rate (SAR), and its maximum levels for modern handsets have been set by governmental regulating agencies in many countries. In the USA, the Federal Communications Commission (FCC) has set a SAR limit of 1.6 W/kg, averaged over a volume of 1 gram of tissue, for the head. In Europe, the limit is 2 W/kg, averaged over a volume of 10 grams of tissue. SAR values are heavily dependent on the size of the averaging volume. Without information about the averaging volume used, comparisons between different measurements cannot be made. Thus, the European 10-gram ratings should be compared among themselves, and the American 1-gram ratings should only be compared among themselves. SAR data for specific mobile phones, along with other useful information, can be found directly on manufacturers' websites, as well as on third party web sites.

Benefits of Planting Trees

Environmental Benefits of Planting Trees

Trees are like the lungs of the planet. They breathe in carbon dioxide and breathe out oxygen. Additionally, they provide habitat for birds and other wildlife. But that’s not all trees do for us! To see just how much trees are essential to the planet and to humans, let’s look at the following statistics:

CO2 is one of the major contributing elements to the greenhouse effect. Trees trap CO2 from the atmosphere and make carbohydrates that are used for plant growth. They give us oxygen in return. According to ColoradoTree.org, about 800 million tons of carbon are stored in the trees that make up the urban forests of the U.S. This translates to a savings of $22 billion in control costs. Mature trees can absorb roughly 48 pounds of CO2 a year. The tree in turn releases enough oxygen to sustain two human beings.

Trees also help to reduce ozone levels in urban areas. In New York City, a 10 percent increase in urban canopy translated to a reduction of peak ozone levels by around 4 parts per billion. (Source: Luley, Christopher J.; Nowak, David J. 2004. Help Clear the Smog with Your Urban Forest: What You and Your Urban Forest Can Do About Ozone.)

Trees reduce urban runoff and erosion by storing water and breaking the force of rain as it falls. The USDA reports that 100 mature trees can reduce runoff caused by rainfall by up to 100,000 gallons!

Trees also absorb sound and reduce noise pollution. This is especially important for people who live near freeways. In some cases, a well planted group of trees can reduce noise pollution by up to 10 decibels. (Source: New Jersey Forest Service.)

Additionally, trees shade asphalt and trees, reducing what is know as the “Heat Island” effect. The EPA has some great information on how planting trees and other vegetation can help to reduce the urban heat island effect.

Please see this - An useful link

water-in-year-2070

The blue Gold

water
THE BLUE GOLD
save it!!!!

WE SHOULD SAVE WATER`
FOR EVERY THING WE ARE DEPEND ON WATER

• try to save water as much as possiblle. 
• It is our duty to save it for our future generations.WATER IS A PRECIOUS RESOURSE.
•  
• people should stop being selfish and should start water conservation insted of being selfish

http://www.waterpreserve.co.za/

pls! save water,it will save u later !!!