This BBC podcast is supported by ads outside the UK.
What if a marginal gain unlocked greater performance?
What if an insight in data could change everything?
At Aramco, our focus on detail helps us deliver
reliable energy to millions across the world because margins aren't marginal.
There where we can truly push the limits of what's possible.
Aramco, an integrated energy and chemicals company.
Learn more at aramco.com.
Today's episode is sponsored by Smart Travel, a podcast from Nerd Wallet.
Do you have a friend who treats airfare like a puzzle and somehow always ends up with a first-class upgrade?
Smart Travel is like that friend minus the group texts.
Nerd wallets travel journalists break down the pros and cons of travel decisions,
like when lounge access is worth paying for and which hotel loyalty programs actually pay off.
Make your travel dollars work harder.
Follow smart travel on your favourite podcast app.
40 degree heat is forcing Paris to shut up shop early.
I've worked a long time and I mean we've had hot days in the past
but these consecutive really really hot days and nights are really painful.
It's World Business Report from the BBC World Service.
I'm Liana Byrne.