BBC News - Sameer Hashmi
In the run-up to the World Cup, Qatar pledged to make this the first carbon-neutral event in the tournament's history. But climate advocates raised serious doubts about its sustainability claims. So, is Qatar living up to its promise?
Due to an acute shortage of hotel rooms in Qatar, tens of thousands of visitors are staying in neighbouring Gulf countries, including the United Arab Emirates.
A shuttle flight service has been set up to take fans to football matches, with an estimated 500 daily flights in and out of Qatar's capital, Doha. Of those, Dubai in the UAE is operating nearly 120 flights every day.
The environmental cost of transporting fans to the host nation by plane has come under scrutiny.
