The transportation sector is a major contributor to air pollution and greenhouse gas emissions. Green Technology offers crucial applications to overcome these issues and maintain environmental sustainability.
The greenest modes are at the base; the least green mode is at the apex.
Green transportation refers to any form of transportation that releases very minimal greenhouse gases or none at all, such as vehicles using renewable energy.
Motorised vehicles consume approximately 60% of the world's petroleum. They produce greenhouse gases like carbon dioxide and carbon monoxide that trigger climate change, as well as acidic gases that cause acid rain.
95% of motorised vehicles used today run on petrol and diesel, which are obtained from petroleum. Because petroleum is a non-renewable source of energy, it can deplete.
Green Technology promotes green transportation modes, especially active commuting like walking and cycling, and using mass transit. It also introduces sustainable vehicle technologies including Natural Gas Vehicles (NGV using CNG or LNG), biofuels made from plant oils and animal fats, and clean electric buses.
The main environmental impacts caused by motorised vehicles.
Fumes emitted by vehicles contain gases such as carbon dioxide and carbon monoxide. Both are greenhouse gases that cause the greenhouse effect, leading to drastic climate change.
95% of motorised vehicles used today run on petrol and diesel, which are obtained from petroleum. About 60% of the world's petroleum is used in the transportation sector. Because petroleum is a non-renewable source of energy, it can deplete.
Dangerous gases emitted from vehicles can cause acid rain. Acid rain destroys plants, corrodes buildings and iron structures, and damages vehicle tyres.
In July 1954, Los Angeles experienced major air pollution where the city was covered in photochemical smog caused by nitrogen oxide and hydrocarbons from vehicle fumes reacting with the surrounding air and ultraviolet rays from the Sun.
Three key applications that reduce pollution and petroleum dependence.
Answer in your mind, then press “Check Answer”.
What are the two greenhouse gases emitted in vehicle fumes mentioned in the textbook?
What is the main source of raw materials used to produce biofuel?
What are two forms of natural gas used in Natural Gas Vehicles (NGV)?
Green transportation only means driving high-tech electric cars.
Green transportation includes any mode that releases minimal or no greenhouse gases, including simple zero-emission activities like walking (pedestrian) and cycling.
Acid rain only harms the atmosphere and clouds.
Acid rain directly damages terrestrial assets: it destroys plants, corrodes buildings and irons, and damages vehicle tyres.
1 Which mode of transportation is located at the very base of the green transportation hierarchy?
2 What is biofuel chemically defined as according to the textbook?
3 Fumes emitted by vehicles contain carbon dioxide and monoxide, which are greenhouse gases contributing to drastic climate change.
4 Natural gas vehicles (NGV) use either liquefied natural gas (LNG) or natural gas (CNG).
Drag each concept to the correct description. On a phone, tap an answer first, then tap a matching box. Tap the Answer Choices area to return a selected item.
Write the correct concept next to each description.
Answer choices: Acid rain • Petroleum • Biofuel • Electric buses
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