Heating oil creates chemicals that are said to be harmful. Here's how olive oil performs.
We asked two experts to examine what the buildling regulations say.
Politicians in Europe, the US and the UK have blamed steel industry woes on artificially cheap imports.
We asked two academics to check the claim made by UKIP leader Paul Nuttall.
We asked two experts to check a claim in the UKIP manifesto.
Theresa May says they have. But let's take a closer look.
The figures don't really add up.
Theresa May claims the Conservatives have historically been a party of low taxes. Is she right?
We asked two experts in youth politics to check the claim that has been circulating on social media.
Labour has pledged to raise the rate of corporation tax to 26% by 2020. How much could this raise?
We asked two academics to check Jeremy Hunt's figures.
The Conservatives claim the energy market is broken. Are they right?
'Per pupil expenditure' is where the real story lies.
Diesel engines have been demonised for their emissions but the technology has already cleaned up its act.
Labour leader Jeremy Corbyn claims they do. Two academics assessed the facts.
The Conversation asked two experts to look at the data.
There's a lot of talk about a Brexit 'divorce bill' costing the UK tens of billions – we got two academics to check the facts.
Vote Leave claims the EU is the slowest growing area in the world. Are they right?
The remain camp argue that Russia is one of only a few countries that favour the UK leaving the EU. We asked two academics.
The Remain campaign cites this survey as proof of the economic benefits of staying in the EU. Here's the story behind the numbers.