Explainers

The president asked whether anyone is "dumb enough" to believe he did what he is accused of doing.
Donald Trump says the US is "locked and loaded" - here's what he's talking about.
Pilots have walked out for two days, in the first strike to ever hit the airline. More than 1,700 flights have been cancelled.
And why is Boris Johnson so keen on one?
MPs now have a chance to push through a law to block no-deal. Here’s everything you need to know.
MPs have accused the prime minister of trying to squash attempts to block a no-deal Brexit. Here's what it all means.
Another explosive week is expected when MPs return to parliament in September to take on Boris Johnson over his Halloween deadline.
This weekend was the hottest late August bank holiday the UK has ever seen.
It's not just Brazil – Siberia, Greenland and the Canary islands are among the other regions fighting "unprecedented" fires.