In nature, there are all kinds of footprints
There is another kind of footprint that is invisible and intangible

That's the carbon footprint

Carbon footprint refers to individuals and families

Carbon consumption of institutions or enterprises

Much more carbon

Carbon dioxide, the culprit of global warming

Also made much

The carbon footprint is large, and vice versa, the carbon footprint is small

How to calculate the carbon footprint?

Carbon Footprint, or Carbon Footprint in English, refers to the collection of greenhouse gas emissions caused by corporate institutions, activities, products or individuals through transportation, food production and consumption, and various production processes. It describes the impact of a person's energy awareness and behavior on the natural world, and calls on people to start from themselves. At present, some companies have begun to practice the environmental protection concept of reducing carbon footprint.

Carbon Footprint
(Carbon footprint), which represents the "carbon consumption" of a person or group. "Carbon" refers to natural resources composed of carbon elements such as petroleum, coal, and wood. The more "carbon" is consumed, the more "carbon dioxide" is also produced, the culprit of global warming, and the larger the "carbon footprint"; conversely, the smaller the "carbon footprint".

A carbon footprint is historically defined as "the total set of greenhouse gas(GHG) emissions caused by an organization, event, product or person." gather. Greenhouse gas emission channels mainly include: transportation, food production and consumption, energy use, and various production processes. Usually all greenhouse gas emissions are expressed in carbon dioxide equivalents.

Concept summary

Among them, "carbon" refers to natural resources composed of carbon elements such as oil, coal, wood, etc.; carbon is consumed much, and carbon dioxide, the culprit of global warming, is also produced.

The supply chain of a manufacturing company generally includes procurement, production, warehousing, and transportation, and warehousing and transportation generate a lot of carbon dioxide.

Calculation method

Calculate your "carbon footprint"

idea

Daily consumption of the public-carbon dioxide emissions-carbon offset

Change the way of life, give up all kinds of "high-carbon" life, and advocate a "low-carbon" life.

Basic formula

Carbon dioxide emissions from household electricity (Kg) = power consumption × 0.785 × renewable energy power correction factor;

Carbon dioxide emissions from driving (Kg) = fuel consumption in liters × 0.785;

CO2 emissions by airplane (Kg):

Short-distance travel: within 200 kilometers = kilometers × 0.275 × carbon emissions per cabin per capita of the aircraft;

Mid-way trip: 200-1000 kilometers = 55 + 0.105 × (number of kilometers-200);

Long-distance travel: 1000 kilometers or more = kilometers × 0.139.

Number of trees to be compensated after conversion

For example: if you travel 2000 kilometers by air, then you emit 278 kg of

Carbon dioxide, for this you need to plant three trees to offset; if you use 100 kilowatt-hours of electricity, then you emit 78.5 kilograms of carbon dioxide. For this, you need to plant a tree; if you drive a car and consume 100 liters of gasoline, you will emit 270 kg of carbon dioxide. For this, you need to plant three trees...

If it is not compensated by planting trees, according to the international general carbon sink price level, every ton of carbon dioxide emitted will be compensated for 10 dollars. With this part of the money, you can invite others to plant trees.

According to the calculation of the absorption of 111Kg of carbon dioxide by firs in 30 years, it is necessary to plant several trees to compensate.

Carbon footprint calculation

First of all, there are several ways to calculate the carbon footprint:

The first is to use the life cycle assessment (LCA) method (this method is more accurate and specific);

The second method is calculated by using the energy fossil fuel emissions (IPCC) (this method is more general);

The third is the input-output method (IO);

The fourth is the Kaya carbon emission identity.

The life cycle analysis method is a bottom-up calculation method, which is a calculation method for the product and its "from beginning to end" process. The calculation process is more detailed and accurate.

The IPCC Carbon Emission Law is a greenhouse gas inventory guide prepared by the United Nations Climate Change Commission, which fully considers greenhouse gas emissions in the calculation process.

The input-output method is a top-to-bottom calculation method that uses input and output for calculations, and the calculation results are not accurate.

The Kaya carbon emission identity uses a simple mathematical formula to link economic, policy, and demographic factors with the carbon dioxide generated by human activities.

There is more than one method available to the public, it depends on how people use it. Calculate from top to bottom on the world map and the map provided by the US State Department like this to calculate the per capita carbon footprint and the total emissions of each country (or other high-level work teams, organizations, etc.). Separate emissions from the group. Calculating from bottom to top is like taking the example of your car's carbon footprint above and summarizing the carbon emissions attributed to individual actions.

Use the carbon footprint of your car as an example: the first method will estimate all carbon emissions, starting from the extraction of raw materials for cars (including all the metals, plastics, glass and other materials used to make cars) to the production and driving of cars And the carbon dioxide emission equivalent of the entire life cycle of the disposal vehicle. The second method only calculates the carbon emissions of fossil fuels used to manufacture, drive and dispose of vehicles.