A Guardian investigation into the U.S. overdose slowdown found that national declines masked sharp local disparities. Here's how the reporting team got the story.

A day in the life of a bin collections team. 00:01:24, play videoA day in the life of a bin collections team 0:59Behind the scenes in a recycling centre. 00:00:59, play videoBehind the scenes in a ...

From recycling to fly-tipping, our teams take a look at waste collection issues affecting communities across England.

US President Donald Trump boasted Tuesday of a "turnaround for the ages" in a State of the Union speech, seeking to reverse his dismal polls and see off mounting challenges ...

Overview: Strong knowledge of data structures and recognizing common patterns makes complex coding questions easier and faster to solve.Thinking out loud during ...