Organisers ASO announced the day before that Sunday's ninth stage from Malemort to Ussel in the central Correze region would be around 30km shorter due to a "red alert" weather warning from Meteo France authorities.And while several riders welcomed the news, Durbridge -- one of the Tour's elder statesmen who is riding in the Grande Boucle for the 12th time this year -- wants ASO and cycling authorities to go further."It's pretty insanely hot," the 35-year-old Australian told AFP before the start of the stage, on a day when temperatures were again expected to reach close to 40C."It does make a difference, we appreciate the change."Going forward, if the way global warming is going, we probably need to start changing these start times."On Sunday morning the CPA association that represents professional cyclists issued a statement saying that it had been in discussions with ASO about making heat-related changes."Given the increasing frequency of extreme heat waves, the CPA reaffirms that summer race start times must evolve in order to protect athletes' health," the association said.It called for "urgent discussions" to be held between stakeholders this winter to make changes ahead of next year's Tour."In the future, if we do have something like this predicted, (then) 9.30 am, 10 o'clock would be a nice start and we'd all be done and we'd be back home before it gets too hot," added Durbridge from the Jayco AlUla team.Sunday's stage was due to start at 1:45 pm and finish at around 5:30 pm –- at pretty much the hottest part of the day.Shaving 30km off the stage length, which was reduced to 155km, was welcomed, though.