[citation needed]<p>Did you mean <i>increase</i> gas taxes?  When I look at the gas price breakdown where I am (Michigan, USA), I only see taxes, no subsidies.
<a href="http://www.michigangasprices.com/tax_info.aspx" rel="nofollow">http://www.michigangasprices.com/tax_info.aspx</a><p>Europe has much larger taxes on gas, diesel, and automobiles than in the US, which discourages car use and ownership.