Final answer:
Fuel costs can affect a country's ecological footprint through the release of greenhouse gases, land use, and the promotion of renewable energy sources.
Step-by-step explanation:
Fuel costs can affect a country's ecological footprint in several ways. First, the burning of fossil fuels releases greenhouse gases, such as carbon dioxide, which contribute to climate change and increase the ecological footprint.
Secondly, obtaining and transporting fossil fuels often requires the use of large amounts of land and resources, which can further impact the environment. Finally, when fuel costs are high, countries may be encouraged to invest in renewable energy sources, which can help reduce their ecological footprint.