As 2015 draws to a close, we reflect back on some of the people powered moments that pulled our heart strings, filled us with passion or simply inspired us.

Here are a few of them, from Greenpeace and beyond...

1. Imagine if we all did this just a few times a year

Tommy Klein cleaned up a heavily polluted waterfront on his way to work in a week of half hours. He filled up one garbage bag at a time until the work was done.

1 person did this in a week of half hours. Imagine if we all did this just a few times a year.

Posted by Greenpeace International on Tuesday, 21 April 2015

2. Can you help make your country next?

It caused a mini meltdown in England when it was introduced spawning countless hilarious tweets. But many countries and cities, including Hawaii, Rwanda, and Montreal, have started to ban plastic bags. Do you think your country could be next?

Hawaii just banned plastic bags. Can you help make New Zealand the next? >> were you...

Posted by Greenpeace International on Tuesday, 14 July 2015

3. "The biggest environmental crime of the 21st century"

It's been labelled so many names by news reports: from a "crime against humanity" to the "greatest environmental disaster this century".

Indonesia's forest fire crisis has affected several neighbouring countries, from Singapore to Thailand and as far away as the Philippines.

There have been 500,000 reported cases of acute respiratory tract infections since 1 July… and up to a third of the world's orangutan habitat has been threatened with destruction.

Since 2007, Greenpeace Indonesia has been building dams in peatland canals to restore the dried-out wetlands and prevent future fires. 

10 shocking facts showing how palm oil and paper companies are *still* trashing Indonesia's rainforests >>...

Posted by Greenpeace International on Sunday, 22 November 2015

4. I am his hands. He is my eyes

Jia Haixia and Jia Wenqi are two 53-year-old men from China who have faced incredible challenges in their lives. Haixia is blind and Wenqi lost both of his arms.

Together, the pair have managed to plant over 10,000 trees over the past 10 years.

"I am his hands. He is my eyes." When your calling is bigger than your limitations. #NothingIsImpossible

Posted by Greenpeace International on Saturday, 14 November 2015

5. This story broke our hearts, not just the internet

Captured in July 2012 at Virunga National Park in the Democratic Republic of Congo, park ranger Patrick Karabaranga was seen consoling a mountain gorilla whose mother was killed by poachers.

So much respect for park rangers like Patrick, protecting gorillas in Virunga National Park. SHARE to spread the love.

Posted by Greenpeace International on Wednesday, 23 September 2015

6. Because to change everything, we need everyone

The most beautiful thing about this movement is that different individuals are taking spontaneous action as they see fit.

Yesterday, kayaktivists in Seattle formed a human blockade -- stopping Shell's rig from heading to the Arctic for...

Posted by Greenpeace International on Tuesday, 16 June 2015

This moment leads us to one of the biggest victories this year...

7. Goodbye Shell! The Arctic won't miss you

In an extraordinary display of people power, Shell succumbed to global pressure and pulled out of Arctic drilling after spending more than US$6 billion over three years.

Give a big WHOOP! This moment is for the 7 million people worldwide who've stood in defence of the Arctic, the polar bears, the whales and the walruses.

GOODBYE SHELL!Shell pulls Arctic drilling program after 3 years, $6 billion and no ARCTIC OIL! This is the sweet taste...

Posted by Greenpeace International on Monday, 28 September 2015

8. I am woman. Hear me roar

From Sri Lanka to South Africa, women are on the front lines leading fight in the poaching wars.

"We have discovered that if you want a project to succeed, have the women of the community run it."

Posted by Greenpeace International on Wednesday, 8 July 2015

9. Demanding justice

In November 2015, two mining dams collapsed in Mariana, in Minas Gerais state, Brazil. This environmental disaster is the one of the worst in Brazil's history.

River Doce, the largest in the southeast region, is at risk of death. Thousands homes are destroyed and lives were lost.

Greenpeace aims to expose the disaster's impact on the environment and demand justice!

One of the worst environmental disasters in Brazilian history is happening right now. Two dams holding millions of cubic...

Posted by Greenpeace International on Tuesday, 17 November 2015

10. Leaving nature to do what it does best

An abandoned fishing village in Shengshi was reclaimed by nature and the result is stunning.

Nature has reclaimed this abandoned village in China... and it's extraordinary!

Posted by Greenpeace International on Tuesday, 9 June 2015

11. It's only the beginning, not the finish line...

As the final details of the Paris climate agreement were being hashed out, Greenpeace France activists used eco-paint to create a shining sun around the Arc de Triomphe.

Renewables for the climate! ☀As #COP21 enters the closing stretch, activists use eco-paint to create a shining sun around the Arc de Triomphe to demand action on climate change.

Posted by Greenpeace International on Friday, 11 December 2015

It always seems impossible until it's done and we're not done yet. We, the people, have the power to change the world!

Stefanus Wongsodiredjo is a Content Editor at the Asia Pacific Communications Hub.