What is a common method for reducing carbon emissions related to transportation?

Using public transport is a common and effective method for reducing carbon emissions related to transportation. Public transport systems, such as buses, trains, and trams, can carry many passengers at once, which significantly lowers the per-person carbon footprint compared to individual car travel. This means that fewer vehicles are on the road, which directly leads to reduced greenhouse gas emissions. By encouraging people to opt for public transportation, overall traffic congestion can also be alleviated, further contributing to lower emissions.

In contrast, increased car usage, boosting airline travel, and increasing individual car ownership could lead to higher carbon emissions. These options promote a model of transportation that relies heavily on fossil fuels, contributing to environmental issues like climate change. Using public transport not only benefits the environment but can also lead to economic savings for individuals through reduced fuel costs and the associated expenses of car ownership.