“Many cities around the world are investing in public transportation to reduce pollution and traffic problems. Experts believe that
buses, trains, and bicycle lanes can improve the quality of life in
urban areas. However, some people still prefer using private cars
because they consider them more comfortable and practical. Governments now face the challenge of balancing environmental concerns with the population’s transportation needs.” (Text created
exclusively for this exam)
The word “however” in the text indicates an idea of: