"Energy, Environment and Sustainable Development" Energy and Energy Conservation Law PPT Courseware 2

Description

"Energy, Environment and Sustainable Development" Energy and Energy Conservation Law PPT Courseware 2

learning target

Understand the relationship between energy, human survival and social development

Understand how to protect the environment and achieve sustainable development

1. Energy and environment

Exchange and discussion

(1) What is the greenhouse effect? Please imagine what consequences global warming will have?

(2) How is acid rain formed? What are the consequences of acid rain and the increase in lead dust in the atmosphere to humans?

(3) Compared with the traditional weather forecast, what additional content does today’s weather forecast have? What does the additional content mean?

(4) What is your attitude towards the development of nuclear power industry? and explain the reasons

(1) Greenhouse effect

The greenhouse effect, also known as the "greenhouse effect", is the common name for the atmospheric insulation effect. The atmosphere can make short-wave solar radiation reach the ground, but the long-wave thermal radiation emitted from the surface is absorbed by the atmosphere, which increases the temperature of the surface and lower atmosphere. Because it functions like a greenhouse for cultivating crops, it is called the greenhouse effect. Since the Industrial Revolution, the amount of heat-trapping greenhouse gases such as carbon dioxide and chlorofluorocarbons (Freon) emitted by humans into the atmosphere has increased year by year, and the greenhouse effect of the atmosphere has also increased, causing a series of serious problems such as global warming. The problem has attracted the attention of countries around the world.

(2) The harm of acid rain

Affect human health and induce various respiratory diseases

Destroy the ecosystem, acidify the soil, destroy deep forests, and acidify rivers and lakes, affecting the growth of fish.

Corrosive to buildings

(3) Lead dust pollution

Increased lead content in the air will lead to a decline in children's IQ and adults to suffer from high blood pressure, heart disease, stroke and other malignant diseases.

2. Make the sky bluer, the water clearer, and the ground greener

Exchange and discussion

(1) How do you think the contradiction between "energy and environment" should be correctly handled?

(2) Our country has proposed the strategy of "sustainable development". What do you think can be done to achieve sustainable development? Is it possible for us as a country alone? Why?

(3) How do you plan to protect our environment yourself?

sustainable development

To achieve sustainable development, first of all, countries around the world must cooperate and strictly abide by the environmental protection conventions formulated by the United Nations; secondly, all countries must continue to improve traditional energy utilization technologies, formulate strict management regulations and policies for "three wastes" emissions, and actively develop and Utilize non-polluting "green energy"; thirdly, to improve citizens' awareness of environmental protection, everyone must start from themselves and use practical actions to protect our environment and achieve "bluer skies, clearer water, and greener land" "Environmental protection goals!

"Green energy" has two meanings

First, use modern technology to develop clean, pollution-free new energy sources, such as solar energy, wind energy, tidal energy, etc.;

The second is to turn harm into benefit, combine it with improving the environment, and make full use of the energy contained in municipal garbage, sludge and other wastes. At the same time, a large number of automation control technologies and equipment have been popularized to improve energy utilization.

Conditions that the ideal energy source of the future must meet:

First, it must be rich enough to ensure long-term use;

Second, it must be cheap enough to ensure that most people can afford it;

Third, the relevant technology must be mature enough to ensure large-scale use;

Fourth, it must be safe and clean enough to ensure that it will not seriously affect the environment.

Operation:

1. Why has environmental protection become a major global issue?

2. Talk about your understanding of the perspective of sustainable development.

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For more information about the PPT courseware "Energy and the Law of Energy Conservation, Energy Environment and Sustainable Development", please click the "Energy and the Law of Energy Conservation ppt Energy Environment and Sustainable Development ppt" tag.

"Energy, Environment and Sustainable Development" Energy and Energy Conservation Law PPT courseware:

"Energy, Environment and Sustainable Development" Energy and Energy Conservation Law PPT Courseware 1. Energy and Environment The development and progress of human society cannot be separated from the use of energy. Every energy revolution has brought major changes to human society. Coal, oil, natural gas and other fossils...

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Update Time: 2024-10-14

This template belongs to Physics courseware Guangdong and Shanghai Edition Ninth Grade Physics Volume 2 industry PPT template

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