People fixing.
People Fixing the World.
Welcome to People Fixing the World from the BBC World Service.
I'm Mayra Anubi and I have a thing about littering.
I just don't like it.
I'm always trying to make sure my kids pick up after themselves.
And sometimes I have caught myself giving people dirty looks when I see them throwing trash on the streets.
Now, people have a tendency to make a mess wherever they go.
We don't just literally litter our streets.
Our rubbish ends up at the bottom of the ocean, deep in forests, high up in mountains, and even in space.
These places are so far away, many of us will never visit them.
But that doesn't change the fact that we have a huge waste problem that's starting to put our lives at risk.
However, you know, this program is all about solutions.
So today we'll hear about new ways to clean up waste in some difficult places.
And to start us off, I'm taking you to the top of the world.
Mount Everest is the highest mountain in the world, towering more than 8,000 meters above sea level.
Just reached the base camp in Nepal.
It's an arduous eight day trek.
Yet despite its remoteness, around 40,000 people travel to the base camp each year, with hundreds carrying on to the top of the mountain.
You may have seen pictures or videos of people waiting in long queues for their moment at the summit.