Material world

Introduction:

pollution is one of the most popular phenomena in recent years. Pollution has a negative impact in environnement and also in the health of the human.

Table of contents:

-Definition of pollution

– Types of pollution

– Food of the futur

– solutions to stop pollution

Definition of pollution:

Pollution  is the introduction of harmful materials into the

environement. These harmful materials are called pollutants. Pollutants can be natural, such as volcanic ash. They can also be created by human activity, such as trash or runoff produced by factories. Pollutants damage the quality of air, water, and land.

Types of pollution:

-Air pollution:

Sometimes air pollution is visible. A person can see black smoke coming from factories, for example. Most often, air pollution is invisible. Polluted air can be dangerous, even if the pollutants are invisible. It can make people’s eyes burn and make it hard to breathe. It may also increase the risk of lung cancer.

Types of pollution:

– Water pollution:

Some polluted water looks muddy, smells bad, and has garbage floating in it. Some polluted water looks clean, but is filled with harmful chemicals you can’t see or smell.
Polluted water is unsafe for drinking and swimming. Some people who drink polluted water are exposed to hazardous chemicals that may make them sick years later.

Types of pollution:

-Land pollution:

Many of the same pollutants that foul the water also harm the land. .
Pesticides and fertilizers from agricultural fields are blown by the wind. They can harm plants, animals, and sometimes people. Some fruits and vegetables absorb the pesticides that help them grow. When people consume the fruits and vegetables, the pesticides enter their bodies. Some pesticides can cause cancer and other diseases.

Food of the future :

By 2050, the global population is expected to hit 10 billion people. This means that – to feed everyone – it will take 56 per cent more food than is produced in the world today, according to the United Nations Environment Programme (UNEP).

Unfortunately, there is not enough agricultural land available to provide larger future populations with the kind of diet people are eating in most countries today.

That’s why scientists try to find algae that humans can eat and they also try to convince people to eat caterpillars and ants

Solutions to stop pollution:

-Recycle things you no longer use

-Stop using plastic bags

-Economise water

-Stop delivery and try to make home food

Bibliographie:

National géographic

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