petrol prices

Hello!
Here is one of my latest essays for the IELTS General Task2.
I would be glad to get corrections and advises.
Thankfully, Alex.
Topic:
Increasing the price of petrol is the best way to solve growing traffic and pollution problems. To what extent do you agree or disagree? What other measures do you think might be effective?
Answer:
Pollution and traffic problems are very current. The increasing number of cars has more and more impact on our environment.
Some people think that we can manage with these problems by increasing the price of petrol. Partly, I agree with this idea, but such action will not solve the problem ultimately and will affect other aspects of our lives. Higher petrol prices will affect the distribution and the price of goods, transport taxes and the cost of other services will also rise automatically. Therefore, we would not solve the pollution problem, and but also reduce our living standards.
Development of new types of motors and making them more accessible for people could help us. Electric and hybrid cars are more and more popular today, but they remain more expensive than conventional ones, and a lot of people can not afford them. The Government help can be very useful. Take Japan for example. I read that Toyota has developed a car that runs on hydrogen? In the nearest future it will be quite expensive, but their government offers to covers 15% of the cost for customers and provides the interest-free credit line. I think it will work, and people will be taking up this offer until the rising demand helps the industry to pull down (1) prices. Such action will help people to change (2) their conventional cars and solve the problem of pollution. To help make our roads be clearer (3), the government should popularize the use of bicycles. I think it would be very helpful; furthermore it works in many European countries, and there are not traffic problems, even in small towns. Building of new roads would also certainly help improve the situation.
To conclude, I want to say that problem-solving today is becoming more and more complicated. A hard limitation will not be as effective as providing of new technologies and motivation for a change of lifestyle.

1) pull down => reduce

2) change => move away from

3) be clearer => less congested

I have made some suggestions for you to consider. I hope they are helpful to you.

Brilliant Alex, happy studying!  Good luck with the IELTS exam.