World Environment Day PPT template with tree planting and garbage classification background

Description

This is a set of World Environment Day PPT templates with a background of tree planting and garbage classification, with a total of 25 pages;

The PPT template cover uses background pictures of children planting trees and garbage sorting bins. Fill in the title of the World Environment Day PPT in the middle. The interface background matches the PPT theme.

The content page of the PowerPoint template uses illustrations such as green earth, green city, green travel, garbage classification, etc., and is paired with PPT text layout.

World Environment Day PPT content introduction:

1. Our Earth

Although the earth is large (with a radius of more than 6,300 kilometers), organisms can only live within the range of 8 kilometers above sea level to 11 kilometers under the sea, and 95% of organisms can only live within the middle range of about 3 kilometers.

Earth's Crisis

Because people did not fully anticipate the negative impacts of highly developed industries and failed to prevent them, they have led to three major global crises: resource shortages, environmental pollution, and ecological destruction. Human beings continue to discharge pollutants into the environment. However, due to the diffusion, dilution, redox, biodegradation, etc. of the atmosphere, water, soil, etc. The concentration and toxicity of pollutants will naturally decrease. This phenomenon is called environmental self-purification. If the discharged substances exceed the self-purification capacity of the environment, adverse changes in environmental quality will occur, endangering human health and survival, and environmental pollution occurs.

Environmental pollution will reduce biological production and aggravate environmental damage.

2. Classification of pollution

According to environmental factors

Air pollution, water pollution, soil pollution.

According to human activities

Industrial environmental pollution, urban environmental pollution, agricultural environmental pollution.

According to the nature and sources of environmental pollution

Chemical pollution, biological pollution, physical pollution (noise pollution, radioactivity, electromagnetic waves) solid waste pollution, energy pollution.

Marine pollution: Mainly crude oil leaked from oil tankers and oil wells, pesticides and fertilizers used in farmland, sewage discharged from factories, and acidic solutions flowing out of mines; they have polluted most oceans and lakes, with the result that not only marine life Birds and humans may also be poisoned by eating these creatures.

Land pollution: Garbage cleanup has become an important issue in major cities. Among the tens of millions of tons of garbage every day, many cannot be incinerated or decomposed, such as plastic, rubber, glass and other mankind's number one enemies.

Air pollution: This is the most direct and serious form. It mainly comes from carbon monoxide and hydrogen sulfide released from factories, cars, power plants, etc. Every day, people contract respiratory or visual diseases due to exposure to this polluted air. If we continue to ignore the warnings of experts, we will surely end up without even an inch of pure land to live in in the future.

3. Dangers of pollution

Cubatown "Death Valley" Incident

Cubatão, a city 60 kilometers south of Sao Paulo, Brazil, became world-famous as the "Valley of Death" in the 1980s. The city is located in a valley. In the 1960s, more than 300 foreign-invested companies such as oil refining, petrochemicals, and ironmaking were introduced. The population increased sharply to 150,000, making it an industrial satellite city of Sao Paulo. Business owners only care about making money and discharge waste gas and water at will. The valley is filled with thick smoke and smelly water flows across the valley. 20% of the people suffer from respiratory allergies. The hospitals are crowded with children and the elderly receiving oxygen therapy, causing serious harm to more than 20,000 slum residents. .

Dead Lake Incident in North America

The northeastern United States and southeastern Canada are the most industrially developed regions in the Western Hemisphere, emitting more than 25 million tons of sulfur dioxide into the atmosphere every year. About 3.8 million tons of it floated from the United States to Canada, and more than 1 million tons floated from Canada to the United States. Since the 1970s, large areas of acid rain have appeared in these areas. Acid rain is more acidic than tomato juice. Dead fish are floating in many lakes and ponds, and lakeside trees have withered.

Main sources of environmental pollution

Waste smoke, waste gas, waste water, waste residue and noise from factories

Waste smoke, exhaust gas, noise, dirty water, and garbage emitted in people's lives

Exhaust gas and noise from transportation vehicles (all fuel vehicles, ships, airplanes, etc.)

Water that flows out from farmland irrigated using a large amount of chemical fertilizers, pesticides, herbicides and other chemicals

Mine wastewater and waste residue

The importance of protecting the environment

Every instance of environmental pollution can be said to be a wake-up call from nature to humans. In order to protect the ecological environment and maintain the health of ourselves and future generations, we must actively prevent and control environmental pollution. If the environment is not protected, mankind will face extinction.

4. Measures to protect the environment

Domestic waste classification and processing

Classify domestic waste at home and hand it over to recycling stations as much as possible if it can be recycled. Contaminated items should not be thrown away. Generally, there are two garbage bins everywhere on the street, one for recyclable garbage and the other for other garbage. When taking out the trash, walk a few steps and be sure to put it in the bin to make it easier for the cleaners to clear it.

Try not to use plastic bags when shopping

You can use cloth or paper bags for shopping. Do not use plastic bags that are difficult to dispose of to avoid environmental pollution. Plastic bags are very harmful. They will not decompose if buried in the ground, and they will pollute the air when burned. Therefore, use more environmentally friendly cloth bags or paper bags.

Hazardous waste must be recycled

For example, ordinary batteries or lithium batteries cause serious soil pollution. Do not throw them away and recycle them. Many places now recycle mobile phones or batteries, and some can even exchange them for some daily necessities. Educate children not to play with batteries or throw batteries around.

Drive less motor vehicles when going out, and ride electric scooters or bicycles more often

Motor vehicles have a direct impact on the air, so those who can walk should not drive. This can not only exercise your body but also reduce the emission of harmful gases. If you have a long journey, you can consider riding an electric car or bicycle, which is environmentally friendly and can alleviate traffic congestion.

Low carbon life, reduce pollution

Use environmentally friendly appliances such as electric water heaters at home. Use electric appliances for cooking as much as possible. Use natural gas where possible and do not use liquefied gas. Don't burn wood or use coal for cooking. Make full use of waste and turn waste into treasure, and don't create too much garbage.

Don’t litter in public places

For example, during outdoor activities, mountain climbing and outings, you must dispose of garbage properly and do not discard it anywhere, which will damage the landscape and pollute the environment. Take good care of flowers, plants and trees, do not trample on lawns, climb trees, and carve messages on bamboo. Be a civilized tourist and an environmental ambassador.

As little masters in the new era, protecting the environment should be our responsibility!

Keywords: Children planting trees and garbage sorting bins on the background of World Environment Day PPT template, World Environment Day themed class meeting PPT template free download, .PPTX format;

File Info

Update Time: 2024-07-02

This template belongs to PPT download environmental protection industry PPT template

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