What does carbon emissions mean?

Carbon emission is the general name or abbreviation of greenhouse gas emission. The main component of greenhouse gas is carbon dioxide (CO2), so people simply understand "carbon emission" as "carbon dioxide emission".

Generation of carbon emissions

Any human activity may cause carbon emissions. Various fuels, gas, paraffin, coal and natural gas will produce a large amount of carbon dioxide in the process of use, as well as in urban operation, people's daily life and transportation (planes, trains, cars, etc.). ). Buying a dress, consuming a bottle of water or even ordering a takeaway will all produce emissions during production and transportation. All combustion processes (man-made and natural) will produce carbon dioxide, for example, ordinary people simply cook with fire; Organic matter will produce carbon dioxide in the process of decomposition, fermentation, decay and deterioration. In fact, carbon emissions are closely related to our daily life.

Calculation of carbon emissions

With the concept of "low carbon" entering people's daily life frequently, people are very concerned about carbon emissions, but their understanding of carbon emissions is very vague. I don't know how to calculate. Here are several formulas for calculating carbon emissions:

Energy consumption 1t standard coal and carbon dioxide emission of 2.6t；;

Carbon dioxide emission of household electricity (kg) = electricity consumption (kWh) x 0.785

Carbon dioxide emission from driving (kg) = fuel consumption (liter) × 0.785;

CO2 emission of the train (kg)= distance traveled (km) × 0.04;

Carbon dioxide emission of domestic natural gas (kg)= natural gas consumption (m3) × 0.19;

Carbon dioxide emission of domestic tap water (kg)= tap water consumption (m3) × 0.91; +0;

Carbon dioxide emission of meat (kg) = meat quantity (kg) × 1.24.

For example, a Chinese fir tree can absorb11kg of carbon dioxide for 30 years, with an average annual absorption of about 4kg. So how many trees need to be planted to compensate for the following consumption:

Travel by air 2000 meters = 278 kg carbon emission =3 trees;

Consumption100 kw h h electricity =78.5kg carbon emission = 1 tree;

Consumption 100L gasoline =270kg carbon emission =3 trees.

Advocate low carbon life

(1) Replace the energy-saving light bulb: replace the tungsten light bulb with the energy-saving light bulb. The service life of the energy-saving light bulb is 6 -8 times longer than that of the incandescent light bulb, and the energy consumption is about 60%.

(2) Moderate air conditioning temperature: the air conditioning temperature is set at about 26℃ in summer and 19℃ in winter. Is beneficial to human health and can greatly save energy.

(3) Choose refrigerators, air conditioners and washing machines with energy efficiency labels, which can save both energy and money.

(4) Buy small-displacement or hybrid vehicles to reduce carbon dioxide emissions.

(5) Try to choose public transportation. Walk, ride a bike, take the light rail or subway.

(6) Carpooling: the car is shared with friends, colleagues and neighbors, which not only reduces traffic flow, but also saves gasoline and pollution.

(7) Turn off the power of electrical appliances, and don't stand by: whether in the office or at home, turning off the power of computers, televisions and other electrical appliances when they are not in use saves more electricity than when they are in standby. If you really turn them off, household energy emissions will be reduced by 65,438+00% or more.

(8) Save water: Turn down the flow of toilets and faucets and use as much water as possible, such as washing dishes with water and mopping the floor with laundry water.

(9) Bring your own kettle and chopsticks: If you bring your own kettle or chopsticks, it will not only support environmental protection, but also be clean and hygienic. Reusing a bottle for 20 times can reduce carbon emissions by 30%.

(10) Refuse to use plastic bags and packaged products: If the packaging waste is reduced by 10%, the annual carbon dioxide emission can be reduced by 540kg.

Developing a low-carbon economy and advocating a low-carbon life is the new trend of world development and the requirement of human sustainable development. Reducing carbon emissions is the responsibility of each of us. We should try our best to avoid or reduce carbon emissions in every detail of our daily life and be responsible for our own and future generations' living environment.

Legal basis:

The?thirteenth?Five-Year Plan

Chapter 46 Actively Respond to Global Climate Change Section 1 Effectively control greenhouse gas emissions, effectively control carbon emissions in key industries such as electricity, steel, building materials and chemicals, and promote low-carbon development in key areas such as industry, energy, construction and transportation. Support the optimization of development zones to take the lead in achieving the peak carbon emissions. Deepen all kinds of low-carbon pilot projects and implement demonstration projects in areas with near-zero carbon emissions. Control non-carbon dioxide greenhouse gas emissions. Promote the construction of a unified national carbon emission trading market, and implement the carbon emission declaration, verification, certification and quota management system for key units. Improve the statistical accounting, evaluation and accountability system, and improve the carbon emission standard system. Increase the popularization and application of low-carbon technologies and products.