Every viewer watching Blue Planet II last night came away with the same thought - we need to make a change.

The show focused on the more expansive parts of the sea where bigger mammals and sea life live.  As part of the show, they explored the world of sharks, dolphins and jellyfish. At the end, it focused on how humans are polluting the world's oceans every day, particularly by the amount of plastic we use. The Blue Planet II crew filmed evidence of this and also the impact it has on the creatures and fish living in the ocean. One particular moment was very hard to watch. It showed a female pilot whale carrying around her dead calf for days after it had died. This broke everyone's hearts as the little calf died from the plastic pollution in the ocean.

Unless the flow of plastics into the world’s oceans is reduced, marine life will be poisoned by them for many centuries to come #BluePlanet2 pic.twitter.com/t1k46FBLpp

— BBC Earth (@BBCEarth) November 19, 2017

Everyone reacted in the same way after seeing this. Most people were crying and others declared that it was time to change.

damn it this show is making me so emotional tonight - its horrible to see how much of an impact we as humans are having upon our oceans #BluePlanet2

— Laura-Amy (@thenamelessfish) November 19, 2017

The amount I’m crying over the baby whale dying in #BluePlanet2 because he ate plastic, I’d make a new ocean with them for the whales and ban humans ??????

— Lou (@JeeezeLouise_) November 19, 2017

The poor whale mother refusing to let go of her dead calf poisoned by plastic and chemicals ? #BluePlanet2

— Char (@beyer_char) November 19, 2017

A grieving pilot whale carrying her dead baby for days.... oh I can't bear it.We have to change. #BluePlanet2

— Deborah Meaden (@DeborahMeaden) November 19, 2017

Planet Earth is mindbogglingly remarkable yet we seem to be doing our best to destroy it. We really do need to wake up and protect it before it’s too late. #BluePlanet2

— Gary Lineker (@GaryLineker) November 19, 2017

So #BluePlanet2 was wonderful viewing right up until the bit where viewers are (rightly) reminded we’re slowly turning the planet to a rotten mass of biological bumf?

— Gavan Reilly (@gavreilly) November 19, 2017

Ordering a reusable water bottle and coffee cup first thing tomorrow morning after watching #BluePlanet2 ?

— Amy ? (@WhatSheDoesNow) November 19, 2017

The show stated that every year we dump over 8 tonnes of plastic in the ocean. While we have a long way to go before we make a big change, the BBC has given some advice on how we can change our everyday routine to help the situation. Start small - swap out your plastic for cardboard. So, for example, if you use cotton buds, then change them for the cardboard version, rather than the plastic kind.