Are biodegradable bags better than plastic?

Release time:2023-09-28 Number of views: 19

title:Are Biodegradable Bags Better Than Plastic? Debunking the Myths


The issue of plastic pollution has gained significant attention in recent years, prompting discussions about alternative solutions. Biodegradable bags, often promoted as an eco-friendly alternative to plastic bags, have become increasingly popular. However, are they truly better for the environment? In this article, we will delve into the debate, examining the benefits and drawbacks of biodegradable bags and exploring the extent to which they can alleviate the plastic crisis.

1. Understanding Biodegradable Bags

Biodegradable bags are made from materials that can break down naturally in the environment over time. Unlike traditional plastic bags that can persist in the environment for hundreds of years, these bags are designed to decompose in a shorter period. They are typically made from plant-based materials such as cornstarch, which can be broken down by microorganisms into natural elements like water and carbon dioxide.

2. Environmental Benefits

One of the main advantages of biodegradable bags is their reduced environmental impact compared to traditional plastic bags. Since they decompose over time, they do not accumulate in landfills or oceans, reducing the risk of harming wildlife. Biodegradable bags also have a smaller carbon footprint as they are made from renewable resources. Furthermore, they contribute less to greenhouse gas emissions during production.

3. Biodegradable vs. Compostable Bags

It is crucial to understand the distinction between biodegradable and compostable bags. While both terms imply environmental friendliness, they have different decomposition processes. Biodegradable bags break down naturally with the help of microorganisms. On the other hand, compostable bags require specific conditions, such as high temperatures and microbial activity, found in industrial composting facilities or home composting systems. Therefore, not all biodegradable bags are necessarily compostable.

4. Limitations of Biodegradable Bags

Despite their apparent benefits, biodegradable bags come with limitations. Firstly, they require specific environmental conditions to decompose efficiently. If they end up in a landfill, where oxygen and sunlight are limited, their degradation process is significantly slowed down. Hence, they might not perform as expected under real-world conditions. Moreover, biodegradable bags often leave behind small fragments called microplastics, which can still pose environmental risks.

5. The Role of Consumer Behaviour

While opting for biodegradable bags seems like a responsible choice, it is essential to consider our overall consumption habits. Using fewer bags, regardless of their material, is crucial for combating plastic pollution. Reusable bags, made from materials like cloth or canvas, remain the most sustainable option. It is our collective responsibility to reduce our reliance on single-use items and choose long-lasting alternatives.


Biodegradable bags offer a promising solution to the plastic crisis, reducing environmental impact and carbon emissions associated with traditional plastics. However, their effectiveness depends on several factors, including proper disposal methods and consumer behavior. It is vital to remember that the most sustainable choice is to minimize our overall consumption of bags and shift towards reusable alternatives. Promoting education and awareness on plastic pollution will ultimately lead to a more significant and lasting environmental change.