Our Future Energy Essay 5, Our Future Energy Essay

One day, I was passing by the toilet and saw a little boy washing a mop. He opened the water very large, like a waterfall magnificent, and the water that spread out was bigger than a large soybean, and one by one was as crystal clear as a pearl. Just then, his classmates walked by, and he ran to talk to him, and it took about two minutes for him to finish.

The water was so full that it overflowed from the sink. Finally, he finished washing the mop. The water was wasted, and when he left, he finally knew that the water was turned off, but before it was turned off, the water kept flowing down like a silk.

I walked over and locked him up. I thought to myself: Wouldn't it be better to turn off the water when you go out to chat, so you don't have to waste so much water?

We can't do without energy every day, and the vast majority of cars running on the streets are powered by gasoline or diesel, which is refined from petroleum mined in the ground; Most of the cooking at home is done with gas and natural gas.

It is estimated that there are about 1 million to 5 million tons of helium-3 reserves on the moon, and some even estimate 500 million tons.

What if all the oil, coal, and natural gas in the ground were mined one day? Perhaps, in less than 100 years, the earth's underground energy will be depleted. At that time, because there was no electricity, the TV set could not be turned on, the air conditioner could not be turned on, the computer was wasted, and even the lights could not be turned on at night. Because there is no oil and coal resources, planes, trains, ships, and automobiles cannot be driven.

As a result, we had to go to school by horse-drawn carriage or bicycle, and most of the evenings were partial.

Just write about the future of energy sources such as solar, wind, hydrogen, geothermal, combustible ice, etc.

At the beginning, I write that coal and other resources have been mined, and then I quote some hydrogen-solar-wind-biogas-hydro energy, and at the end, I want to protect the environment.

Today, the world is developing rapidly and life is changing with each passing day, but economic life is inseparable from energy consumption. And the consumption of energy and the environmental pollution caused by the world's problems, so what will we do in the future? How can we keep our world developing sustainably and have a better tomorrow?

First of all, we should save energy, we should save electricity, we should turn off the lights at will, save water, and make resources secure, so that we can delay the use of resources.

In the future, we will have to learn from each other's strengths, and we can use solar energy in the tropics, which can not only bring electricity to the people in the tropics, but also protect the environment; In the vast grassland, wind energy can be used, so that the grassland people have enough electricity to live, work and develop; If you live near the sea, you can use ocean energy, after all, seawater makes up 57% of the earth, and we can take hydrogen from seawater. Hydrogen is the most common element in the universe, with hydrogen and its isotopes accounting for 84% of the total mass of the Sun and 75% of the mass of the universe. Among the many new energy sources, hydrogen energy stands out for its unique advantages such as light weight, no pollution, high calorific value and wide application, and will become the most ideal new energy in the 21st century.

Hydrogen energy can be used in aerospace, automotive fuels, and other high-heat industries.

However, the most likely application in the future is nuclear energy, which is the energy released from the nucleus by converting its mass, but there are many problems with nuclear energy: low resource utilization, nuclear waste generated after the reaction has become a potential factor that harms the biosphere, its final treatment technology has not been fully solved, reactor safety issues still need to be continuously monitored and improved, and nuclear non-proliferation requirements are constrained, that is, the plutonium-239 generated in nuclear power plant reactors is controlled, and the investment cost of nuclear power construction is still higher than that of conventional energy generation. The investment is risky.

Geothermal energy is also a more likely application of electricity in the future, and the heat source of the earth's interior can come from gravity differentiation, tidal friction, chemical reactions, and energy released by the decay of radioactive elements. Radioactive heat energy is the main source of heat on Earth. China's geothermal resources are abundant and widely distributed, with 5,500 geothermal hotspots and 45 geothermal fields, with a total geothermal resource of about 3.2 million megawatts.

In short, at a time when the existing resources are about to be exhausted, with the joint efforts of the international community, the vast number of energy scientists will surely find safe and effective new energy sources to benefit mankind and make our future better.

And the Chinese nation will also stand proudly on top of the world under the impetus of new energy!

Water is the source of life, and water conservation cannot be ignored!

Although water is recycled in nature, the amount of water used by humans is much higher than the water that can be used by humans, and water conservation is a matter for each of us.

All should be done.

I feel that both used water and polluted water can be reused. For example, the water used to wash vegetables and clothes can be flushed to the toilet, and the polluted water can be used in all possible situations, which not only reduces the water bill, but also achieves the purpose of saving water. The urban sewage should be reused more often for public facilities and residential toilets, watering green spaces, landscape water, watering roads, etc., in this way, the recycling effect of sewage has been improved a lot!

Do you know? There is water on the earth, but some of this water is saltwater, and most of the saltwater is ocean water, which cannot be drunk, because there are 39g of salts in 1kg of ocean water; And this water is freshwater, and most of the freshwater is glacier water and deep groundwater, which account for 99% of freshwater, and the water available for our human use is only freshwater, and our water resources are very small. China is a water-scarce country, so we need to save water and protect it.

The use of water is ubiquitous in life, and the sewage discharged from factories can also be recycled after purification, but there is also a cost, such as the cost of purification, which in turn consumes resources.

Rain is something we've all seen. Of course, it's hard to say if you have thought of using rainwater. Scientists all believe that rainwater is actually a rare wealth, it is also a water resource, and quite precious, but, from a national perspective, China's rainwater collection and utilization rate is still very low, we should use scientific development thinking to look at rainwater, with scientific means to treat rainwater, let rainwater stay, be used scientifically and recycledly, and then scientifically send it or into the ground or into rivers and lakes.

Isn't this a way to make the most of water resources?

In fact, most people know the preciousness of water, but they also choose to forget. How many people don't know how to save water? How many people waste water?

I'm afraid it's a lot. This is related to publicity, I think, there should be a lot of ** on the use of resources on TV, ** propaganda is also very important, and the flowers of the motherland in the new era should develop a good habit of saving water from an early age, you know, we human beings, can not do without water, the whole earth, can not do without water!

Moreover, water conservation has many benefits, not only to alleviate the contradiction between supply and demand of water resources, reduce the pressure of urban development on the environment, but also to continue the construction investment of water supply and sewage treatment facilities, and reduce the operating costs of water supply and sewage treatment facilities. From a strategic point of view, saving water is definitely a good thing!

Water conservation is not the efforts of one person, but the efforts of thousands of people, but no matter what method is used, we should take immediate action and turn ideas into action.