Bulletins3

Cotton totes need to used 131 times to be ‘eco-friendly’

Scientists looking at different types of bags and their impact on the environment have found that cotton bags offered by many supermarkets may be less “green” than plastic carriers.

The government sponsored research, “Life Cycle Assessment of Supermarket Carrier Bags” by Dr Chris Edwards and Jonna Meyhoff Fry looked at the environmental impact of six different types of bags.

They found that cotton bags may cause more global warming, as a greater amount of energy goes into making a cloth carrier than a polythene one.

And that a cotton bag has to be used 131 times before it has the same environmental impact like its plastic counterpart.

And if a plastic bag is re-used as a bin liner, a cotton bag has to be used 173 times – nearly every day of the year – before its ecological impact is as low as a plastic bag on a host of factors including greenhouse gas emissions over its lifetime. But researchers found that most of us only use the bags around 51 times before they are thrown away. Paper bags, used by some clothes chains such as Primark, need to be used three times to fall below the environmental impact of the thin plastic carrier.

While bags for life, made of stronger plastic, have to be used four times to start having less ecological impact.

The report said using a thin plastic bag, made from a plastic called high-density polyethylene (HDPE), equates to generating 1. 57kg of carbon dioxide, the greenhouse gas that scientist believe leads to global warming.

A cotton bag would have to be re-used 171 times to emit the same level of CO2.

Cotton bags typically made in China have a greater environmental impact because of the water and fertiliser required in their
production, as well as their transportation and greater weight.

The HDPE bag had the lowest environmental impacts of the single use options in nin of the 10 impact categories, “the Daily Mail quoted the researchers as saying.

The bag performed well because it was the lightest single use bag considered,” they said.

Plastic bags have also come under fire for using up oil and for littering the countryside and fouling the marine environment for wildlife.

However, the research found that biodegradable bags made of starch were not a greener option than HDPE bags as they are less environmentally friendly to make and heavier.

“In practical terms of global warming potential, eutrophication [a form of river pollution] ozone layer depletion, toxicity and ecotoxicity the current starch polyester blend bag is significantly worse than conventional single-use options due to the high impact of raw material production on those categories,” the authors wrote.

An Environment Agency spokesperson said the report focuses on the greenhouse gas emissions of manufacturing different types of carrier bags. “Much of the environmental impact of these bags is associated with the primary resource use and production,” the spokesperson said.

“The final report due to be published in the next two weeks, will show that all multi-use bags – plastic, cotton or paper – need to be reused on multiple occasions to justify the additional carbon footprint of their production.

“If they are, then their overall carbon footprint can be less than single use plastic bags,” the spokesperson added.

Cotton bales worth 70 million rupees destroyed in india’s fire

Cotton bales worth 70 million rupees were destroyed in a fire at the warehouse of the Gujco Marshall mill in Amreli district of Ahmedabad in Gujarat state today, police said.

The warehouse is located on the outskirts of Amreli city, where cotton bales were stored, PTI reported.

Though there were no casualties in the incident, the loss cause by the fire has been estimated at 70 million rupees, police said. Cause of the fire is not known yet.

Cotton is a natural fiber harvested from the cotton plant. Cotton is one of the oldest fibers under human cultivation, with traces of cotton over 7,000 years old recovered from archaeological sites. Cotton is also one of the most used natural fibers in existence today, with consumers from all classes and nations wearing and using cotton in a variety of applications. Thousands of acres globally are devoted to the production of cotton, whether it be new world cotton, with longer, smoother fibers, or the shorter and coarser old world varieties. India is the third largest producer of cotton in the world after China and US accounting for about 14 percent of the world cotton production. It has the dis-tinction of having the largest area under cotton cultivation in the world ranging between 8 million to 9 million hectares and constituting about 26 percent of the world area under cotton cultivation.

The yield per hectare is however, the lowest against the world average, but over the last two years have shown a promising potential to reach near the world average production level in near future.

Asia dominates the global cotton sector in terms of both output and use. China, India and Pakistan account for half of the world’s cotton production and two-thirds of world cotton consumption. Pakistan is the world’s fourth largest pro-ducer and third largest consumer.

Cotton totes need to used 131 times to be ‘eco-friendly’

Scientists looking at different types of bags and their impact on the environment have found that cotton bags offered by many supermarkets may be less “green” than plastic carriers.

The government sponsored research, “Life Cycle Assessment of Supermarket Carrier Bags” by Dr Chris Edwards and Jonna Meyhoff Fry looked at the environmental impact of six different types of bags.

They found that cotton bags may cause more global warming, as a greater amount of energy goes into making a cloth carrier than a polythene one.

And that a cotton bag has to be used 131 times before it has the same environmental impact like its plastic counterpart.

And if a plastic bag is re-used as a bin liner, a cotton bag has to be used 173 times – nearly every day of the year – before its ecological impact is as low as a plastic bag on a host of factors including greenhouse gas emissions over its lifetime. But researchers found that most of us only use the bags around 51 times before they are thrown away. Paper bags, used by some clothes chains such as Primark, need to be used three times to fall below the environmental impact of the thin plastic carrier.

While bags for life, made of stronger plastic, have to be used four times to start having less ecological impact.

The report said using a thin plastic bag, made from a plastic called high-density polyethylene (HDPE), equates to generating 1. 57kg of carbon dioxide, the greenhouse gas that scientist believe leads to global warming.

A cotton bag would have to be re-used 171 times to emit the same level of CO2.

Cotton bags typically made in China have a greater environmental impact because of the water and fertiliser required in their
production, as well as their transportation and greater weight.

The HDPE bag had the lowest environmental impacts of the single use options in nin of the 10 impact categories, “the Daily Mail quoted the researchers as saying.

The bag performed well because it was the lightest single use bag considered,” they said.

Plastic bags have also come under fire for using up oil and for littering the countryside and fouling the marine environment for wildlife.

However, the research found that biodegradable bags made of starch were not a greener option than HDPE bags as they are less environmentally friendly to make and heavier.

“In practical terms of global warming potential, eutrophication [a form of river pollution] ozone layer depletion, toxicity and ecotoxicity the current starch polyester blend bag is significantly worse than conventional single-use options due to the high impact of raw material production on those categories,” the authors wrote.

An Environment Agency spokesperson said the report focuses on the greenhouse gas emissions of manufacturing different types of carrier bags. “Much of the environmental impact of these bags is associated with the primary resource use and production,” the spokesperson said.

“The final report due to be published in the next two weeks, will show that all multi-use bags – plastic, cotton or paper – need to be reused on multiple occasions to justify the additional carbon footprint of their production.

“If they are, then their overall carbon footprint can be less than single use plastic bags,” the spokesperson added.

Cotton bales worth 70 million rupees destroyed in india’s fire

Cotton bales worth 70 million rupees were destroyed in a fire at the warehouse of the Gujco Marshall mill in Amreli district of Ahmedabad in Gujarat state today, police said.

The warehouse is located on the outskirts of Amreli city, where cotton bales were stored, PTI reported.

Though there were no casualties in the incident, the loss cause by the fire has been estimated at 70 million rupees, police said. Cause of the fire is not known yet.

Cotton is a natural fiber harvested from the cotton plant. Cotton is one of the oldest fibers under human cultivation, with traces of cotton over 7,000 years old recovered from archaeological sites. Cotton is also one of the most used natural fibers in existence today, with consumers from all classes and nations wearing and using cotton in a variety of applications. Thousands of acres globally are devoted to the production of cotton, whether it be new world cotton, with longer, smoother fibers, or the shorter and coarser old world varieties. India is the third largest producer of cotton in the world after China and US accounting for about 14 percent of the world cotton production. It has the dis-tinction of having the largest area under cotton cultivation in the world ranging between 8 million to 9 million hectares and constituting about 26 percent of the world area under cotton cultivation.

The yield per hectare is however, the lowest against the world average, but over the last two years have shown a promising potential to reach near the world average production level in near future.

Asia dominates the global cotton sector in terms of both output and use. China, India and Pakistan account for half of the world’s cotton production and two-thirds of world cotton consumption. Pakistan is the world’s fourth largest pro-ducer and third largest consumer.