Natural Polymers for Biodegradable Dressings to Save the Environment

The current fashion system uses high volumes of non-renewable resources to produce clothes, being responsible for 10% of the global greenhouse gas emissions into the atmosphere every year and 20%of the global water wasted. At the same time people are buying 60%more clothing than 15 Years ago, which going in the landfills, causes 92 million tons of waste each year. This waste has been further increased by the surgical masks used for COVID-19 pandemic. Thus, a new way of designing and producing clothing needs to be incorporated into the current system to facilitate its recycling making it more circular. New tissues, therefore, are proposed made by natural polysaccharides, embedded by micro- Nano capsules of chitin Nano fibrils and Nano lignin all obtained as by- products from food and forestry waste respectively. Thus, pollution and waste will be reduced and the natural raw materials will be maintained for the future generations.

2020 ◽  
Vol 1 (3) ◽  
pp. 157-165
Author(s):  
Morganti P ◽  
Morganti G

Consumption of natural raw materials is causing climate changing, by an acceleration of glaciers, oceans, and forests’ depletions with the contemporary accumulation of waste materials. Moreover, the COVID-19 pandemic has further incremented the waste material of plastics because of the obligatory use of surgery masks, made prevalently by the non-biodegradable polypropylene. Thus, the necessity to change the way of producing and consuming transforming the linear economy based on the taking, make, and waste in the circular economy of reducing, reusing, and recycling. Changing the actual way of living, it will be also possible to drastically reduce the increasing plastics waste that, invading lands and oceans are entering into the food chain with negative effects on fauna flora and the human’s wellbeing. Just to remember the global production of plastics exploded from 1.5 million metric tons in 1950 to nearly 350 million metric tons in 2017 and, disposed to the landfill as waste, are producing global greenhouse gas emissions of 2.8 billion tons per year. Being the technology ready, it is proposed to produce natural polymers, such as chitin and lignin which, obtainable from waste materials, may be used to produce biodegradable goods and surgical and beauty masks. By this way it will be possible to maintain the natural raw materials for future generations, saving human wellbeing and the world’s biodiversity.


2021 ◽  
Vol 75 (9) ◽  
pp. 772-779
Author(s):  
Edouard Godineau ◽  
Vlad Pascanu ◽  
Aurelien Bigot ◽  
William G. Whittingham

Today, the production of food accounts for roughly one quarter of anthropogenic greenhouse gas emissions. Since the 1970s, thanks to substantial research and development, the overall yield output in farm fields has increased by ca. 60%, while the net use of crop protection agents per square meter of farm field has been reduced by more than 90%. The development of modern crop protection agents remains an important need as new pests, diseases and weeds continue to affect crops. The vast majority of these effective solutions are manufactured using raw materials that ultimately come from fossil resources. In this article, we are touring within the agrochemical landscape to provide the reader with an overview of concrete examples on how in this industrial field, renewable and sustainable raw materials have been used to produce active ingredients. We are also discussing the opportunities for future development as well as some of the challenges and needs that are emerging.


Petroleum by-products are now contemporary utilization rate it will be consuming in upcoming periods.Ethanol usage is one of the transport sectors can fulfill the requirement and contribute to mitigating the greenhouse gas emissions of the vehicles. In order to expand the SI engine which can function on 100% ethanol or append ethanol in petrol and operate the blends of that. The intention of this project is going to prepare the thermal and rheological behavior of pure petrol, E5 and E10, E15 ethanol-gasoline blend. All thermograms of heat flow exhibited at a 35ºC-280ºC temperature range at air atmosphere. This contemplation concludes that ethanol blending is the lowest exhaust gasses with considerable improvement in the performance of the Spark Ignition (SI) engine and promising, Ethanol as a new fuel which can be fortunately replace petrol and its depletion problem


Significance Coal production and imports have fallen and prices have soared as the government implemented policies to reduce greenhouse gas emissions. Now it is having to reverse course. Impacts Companies relying on components and raw materials from China will face longer delays. Wholesalers and retailers expecting household goods will also face delays. Higher energy prices and supply chain disruptions will exacerbate existing inflationary trends.


2020 ◽  
Vol 6 (2) ◽  
pp. 86-97
Author(s):  
Catarina Costa ◽  
Nuno Azoia ◽  
Carla Silva ◽  
Eduardo Marques

In the last years, sustainable practices have been developed to minimize the negative effects of production and excessive consumption on the environment. The textile and clothing industry is one of the most polluting industries globally and needs to rethink its strategies. The fast-fashion caused an increase in production, and the environmental weight associated with the textile industry also increased. The problems range from the enormous expenditure of water resources to the carbon and greenhouse gas emissions to reaching the consumer. This review focuses on the eco-friendly approaches taken by the industry towards supportable apparel manufacturing, from the choice of raw materials to the last step in the textile industry.


Climate Law ◽  
2010 ◽  
Vol 1 (3) ◽  
pp. 409-427 ◽  
Author(s):  
Alexander Zahar

Despite the hopeful prediction in the New York Times story, we are very far from being able to use satellites to verify compliance with the Kyoto Protocol’s caps on greenhouse gas emissions of Annex I states. The problem is not only one of insufficiently developed or installed technology. “Satellite verification” would also mean changing the current system of reporting-and-review of state emissions, opening it up to independent scrutiny, and making it less forgiving of state evasiveness and ambiguity about emissions than it is now. Some states will be interested in this proposal and others will not. In any event, the current MRV system, built on bottom-up state reporting, will remain the dominant framework of international GHG emissions knowledge for the foreseeable future. To safeguard its own credibility, it must progressively be strengthened. In this article I outline the existing verification regime’s main shortcomings and argue that the most efficient way around them is to incorporate into the current MRV system top-down (satellite and surface) measurements, resolved by modeling software at the state level, and produced by independent scientific experts in cooperation with the UNFCCC.


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