It is true that riding a biclycle is not prevalent among many people around the world although cycling is a better way to mitigate environmental contamination than other types of transport.Reasons for this vary, and steps need to be taken to promote the useage of bicycles.
I think that the first sentence which you used "better... than" structure is not correct. Because when you used "a better way" that is a noun, so it cannot connect with "than" . That means you should change a bit, for example "....rather than other types of transport".
"Reasons for this vary" does not make sense and impolite, maybe that should be changed in this way "reasons for this phenomenon will be discussed in this essay and resolutions need to be pointed out to promote the usage of bicycles".
To begin with, there are several reasons why few people use bicycles on a regular basis.
few people regularly use bicyckes
Firstly, these days people is often busier than before ever. Many people have to take responsibility for a mountain of work at their working places; therefore, they want to spend less time on transport as much as possible.
This obviously causes this is a dominant reason lead them to choose motor vehicles such as motorbikes or cars.
Another justification for this problem Another supportive explanation for the phemomenon is that today a number of people lead possess a sedentery lifestyle.
Using bicycles consumes more energy than needs more physical demand than other types of transport, which deters people from choosing this means of transport.
Firstly, the government should conduct organize or held suitable campaigns to raise public awareness of the detrimental beneficial effects of motor vehicles bicycles on the environment.
thus people cycling can move faster than using the lanes of other types of transport.
thus, cyclists might move easier and faster on such lanes.
Finally, the government can impose heavy taxes on cars and motorbikes, so people will think carefully (excogitate) before buying ones.
In conclusion, the increase in using this environmental friendly vehicle is intractable, andsolutions are available to mitigate the problem. this part of the sentence does not make sense, you should re-wirte this conclusion.
hoping this is useful for you.