Carlos Calvo Ambel

Devil in the detail of Europe’s 2050 transport model
As the EU puts together a mid-century climate strategy, Carlos Calvo Ambel explains how the Commission’s choice of modelling could be severely underestimating what emission cuts can be gained from the transport sector.

Aviation biofuels: Won’t get fooled again
Biofuels are being touted as a solution to the problem of aviation emissions. But previous experience shows us we must take care to ensure they are not actually worse for the environment than the kerosene they replace, writes Carlos Calvo Ambel.
When it comes to cutting Europe’s CO2, trucks drive under the radar
Heavy duty vehicles account for a significant portion of CO2 emissions, and their impact is only supposed to increase. New measures must be adopted quickly in order to achieve climate goals, writes Carlos Calvo Ambel.
Biomass’ ‘zero’ ETS rating burns us all
We have no idea if the biomass burned actually reduces CO2 emissions, which raises questions about the energy source's zero rating in the EU's Emissions Trading System, writes Carlos Calvo Ambel.