Combined with China s national conditions, what is the significance of participating in the Earth H

Support for the common fight against global warming.

Earth is one of the eight planets in the solar system, ranking third in order of distance from the sun, and it is also the terrestrial planet with the largest diameter, mass and density in the solar system, 100 million kilometers away from the sun. The Earth rotates from west to east while revolving around the Sun. It is 4,04.6 billion years old, and it has a natural satellite, the Moon, which forms a celestial system, the Earth-Moon System.

It originated from the primordial solar nebula 4.6 billion years ago.

When the Earth's mass is added up from all this matter and the gravitational pull increases, the matter tries to take the most efficient shape: a sphere. If the Earth were a cube, its corners would be farther away from the center than the other points.

Because gravity acts on all objects, the corners need to be pulled closer to the center. The constant rotation of the Earth creates centrifugal force, which makes the Earth wider at the equator than at the poles.

The shape of the earth is also not static. It's always changing. Sometimes these changes are regular, such as the daily tides that affect the oceans and crust. Other changes are irregular and very slow, such as the movement of the Earth's tectonic plates.

Raise awareness of environmental protection.

In 2008, Sydney's energy consumption fell within an hour of the planet, the equivalent of extinguishing 1.6 million light bulbs. Christchurch, the only city in New Zealand to officially participate in the lights-out event, released data showing that energy consumption was reduced by nearly 13% for one hour of lights out.

Under the global "lights out" relay, more people have begun to realize the importance of energy conservation and emission reduction, and participate in this event in their own way. Earth Hour hopes to unite the world in such a simple and straightforward way, and remind people to stop their lives and think about how to deal with global warming.

Energy conservation and emission reduction results.

Statistics show that if 100 million households around the world turned off their lights for one hour, 550,000 tons of carbon dioxide emissions would be reduced. In 2007, the first year of Earth Hour, Sydney, Australia, set a target to reduce energy consumption by 5%; On March 31, 2008, the electricity saved in Sydney alone was enough for 200,000 TVs to be used for one hour, which is equivalent to 48,613 cars running on the road in one hour, and the effect of energy saving and emission reduction is significant.

Earth Hour is a global energy-saving and environmental protection activity.

The main meaning should be to make everyone aware of the need to protect the earth and pay attention to the environmental problems of the earth.

By advocating individuals, societies, businesses and enterprises to turn off the lights for one hour on the last Saturday of March every year, the global public can think deeply about environmental issues such as climate change and inspire a sense of responsibility to protect the earth. 2020 marks the 12th year that Earth Hour has been introduced to China. Accompany the collapse.

Earth Hour, walking in the park.

What is WWF? Since its establishment in 1961, WWF has been committed to environmental protection, with nearly 5.2 million supporters worldwide and a network active in more than 100 countries. WWF's mission is to halt the deterioration of the earth's natural environment and create a better future where people and nature live in harmony.

Committed to: Protecting the world's biodiversity; ensuring the sustainable use of renewable natural resources; Promote action to reduce pollution and wasteful consumption.

2] What is the specific content of the "Earth Hour" initiative? --"Earth Hour"It is an initiative put forward by WWF (World Nature**) to address global climate change, hoping that individuals, communities, enterprises and ** will turn off the lights for one hour at a specific time to show their support for climate change action.

3] Which cities in China will respond this year? -- The first city in Chinese mainland to officially announce its participation in the event is Baoding. In addition, there are:

Beijing, Shanghai, Hong Kong; Recently, Dalian, Chengdu, Wuhan, Shenzhen, Foshan Shunde and other places have also set off a boom in response to turn off the lights, and more and more cities are joining. Earth Hour is an initiative of the WWF (World Nature) to address global climate change, hoping that individuals, communities, businesses and ** will turn off their lights for one hour at a specific time to show their support for climate change action. In 2009, Earth Hour aims to involve about 1 billion people in 1,000 cities around the world.

4] When is the specific time? - March 28, 2009, 8:30-9:30.

1. The importance and necessity of holding Earth Day activities

The earth is the common home of mankind, however, with the development of science and technology and the expansion of economic scale, the global environmental situation has continued to deteriorate over the past 30 years. Data show that the global average annual temperature has increased by degrees Celsius since 1860, with the 13 warmest years occurring after 1983.

In the 80s of the 20th century, the average number of people affected by disasters in the world was 100 million per year, and by the 90s of the 20th century, this number had risen to 100 million. About 40 per cent of the world's population is currently suffering from severe water scarcity, and if this trend is not halted, more than 55 per cent of the world's population will face water scarcity within 30 years. The deterioration of the natural environment is also a serious threat to the wild species on the planet.

Today, 12% of the world's birds and a quarter of the world's mammals are threatened with extinction, and overfishing has depleted one-third of fish stocks.

The purpose of the Earth Day activities is to arouse the awareness of human beings to care for the earth and protect their homeland, and to promote the coordinated development of resource development and environmental protection. Since the 90s of the 20th century, China has held the "World Earth Day" publicity activities on April 22 every year, and the theme of the event has been determined according to the situation of the year. Its purpose is to popularize geoscience knowledge to the public, strengthen the understanding and effective use of the earth by the whole society, improve the public's understanding of the national conditions of resources, and realize the harmonious development of man and nature.

2. The origin of Earth Day

Earth Day comes in the context of increasing environmental pollution. Earth Day events originated in the United States. 1969 was first launched from the United States, and on April 22, 1970, the United States held its first massive "Earth Day" activities, on this day, more than 20 million people in the United States, 10,000 primary and secondary schools, 2,000 colleges and universities, and 2,000 communities and major groups participated in this activity.

Through rallys, marches, preachers, and other forms of advocacy activities, people are calling on all people to take action to protect and save our planet. This is the first large-scale mass environmental protection movement in human history. The event was a great success, and every year since then, Earth Day has attracted much attention.

This is the first large-scale mass environmental protection movement in the history of mankind.

As the beginning of the modern environmental protection movement, the "Earth Day" event promoted the establishment of environmental regulations in many countries. On April 22, 1990, more than 200 million people in more than 140 countries around the world held a variety of environmental protection publicity activities at the same time. This activity has been endorsed by the United Nations.

Since then, "Earth Day" has become "Earth Day".