Discover and read the best of Twitter Threads about #kérosène

Most recents (2)

1/ Reducing the amount of air traffic has to be part of any plan to improve the air industry's environmental performance, says Romain Grandjean @rom1grandjean of @theShiftPR0JECT of the French government's €15bn recovery plan. Some points from itv:
2/ Air travel today is responsible for 2.6% of global emissions: burning #kerosene sends 1.1bn tonnes of CO2 into the atmosphere every year. But heating effect is doubled by non-carbon emissions, mainly intense release of material that leaves #contrails stretching across the sky.
3/ Tech is improving but can't be relied upon entirely: "There are technological options to explore, but even if they're used to their maximum capacity, they're not enough to reduce CO2 emissions linked to air traffic in the respect of the engagements of the Paris Deal."
Read 12 tweets
Les mesures annoncées par @EPhilippePM montrent que @EmmanuelMacron est prisonnier d'une idéologie surannée qui fait de la hausse des prix des #Carburants l'UNIQUE vecteur de la transition écologique, délaissant tous les autres leviers de l'action politique

En faisant de la hausse des #Carburants le #signalprix qui doit conduire les habitants du pays à changer de véhicules (sans réduire leurs besoins de mobilité) & changer de chaudière (sans réduire leurs besoins de chauffage), @EmmanuelMacron s’enferre dans une posture idéologique
Pourquoi ?

C'est simple, et tous les économistes connaissent le phénomène : quand une dépense est contrainte à court et moyen terme (cas d'un véhicule ou d'une chaudière), augmenter les prix ne conduit pas à réduire la consommation.
Il y a deux conséquences possibles :
Read 16 tweets

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