Hot on the heels of supporting a new low carbon emission zone for traffic in Barcelona and neighbouring municipalities, the city council in the Catalan capital is proposing more radical action on climate change.
The left-leaning authority has said that the turn-up-and-go air shuttle from Barcelona's El Prat airport to Madrid should be eliminated as there is a high-speed rail connection instead. It has also called on other domestic air links in Spain to be halted where there is already a good train service.
The announcement by Barcelona's councillor for Climate Emergency comes at the same time as disappointing results from the first few days of the city's new low-emissions zone.
Since 2 January, only vehicles displaying an official low-emissions badge, applied for online if not already shown, can enter a 95-square-kilometre area in and around the city.
However the first normal workday with the scheme, on Wednesday, saw a reduction of only 2.4 per cent in traffic based on the equivalent day a year earlier, admitted the local authorities. Neither was there much increase in use of public transport. There will be a few months' grace period before non-compliant vehicles will be fined.
Madrid drivers upset
In Madrid there has been a toughening on parking in public spaces for cars that don't show a low emission sticker with the new year. However the controversial Madrid inner-city restriction area has seen some rules relaxed.
On Thursday, Madrid drivers going to work were upset to discover the mayor had activated a short-term high-pollution-level speed restriction on some key roads without sufficient warning.