Â鶹Éç

Prince William has announced the winners of this year's Earthshot Prize at a ceremony in Singapore.

They include a company making batteries for electric vehicles using parts that are easier to recycle and a scheme helping farmers to cut food waste.

The annual awards, now in their third year, were created by the Prince to fund projects that aim to save the planet.

It seeks to celebrate and support people and companies working to provide innovative solutions for climate and environmental issues.

Keep reading to find out a list of all the winners..

The awards ceremony was hosted by actress Hannah Waddingham, with famous faces such as Sir David Attenborough and Hollywood actress Cate Blanchett also present.

There were also musical performances from bands OneRepublic and Bastille.

The Princess of Wales said she was sorry not to be there, having stayed behind in the UK to help her 10-year-old son George through his "first set of major exams".

In a speech at the awards, Prince William said that despite the effects of the climate crisis becoming too visible to be ignored, "hope does remain".

He explained: "I choose to believe that future generations will look back on this decade as the point at which we globally took collective action for our planet.

"The moment we refused to accept the voices of denial and defeatism, and instead, became the architects of change towards a healthy and sustainable world," the Prince added.

There are five "Earthshots" - or goals: Protect and Restore Nature; Clean Our Air; Revive Our Oceans; Build a Waste-free World; and Fix Our Climate.

Here are this year's winners for each category:

The Andes Mountain Range in South America is struggling with the effects of deforestation.

The Andean Forest is home to a rich diversity of wildlife, including 50 endangered species - but less than 10% of it now remains.

Deforestation doesn't only impact wildlife - indigenous communities rely on the land for their survival.

Acción Andina works with thousands of people in local and indigenous communities to protect and restore the forests.

The initiative provides training to local conservation leaders, pays for projects and works closely with communities in the high Andes to help protect nature.

Since 2018, almost 10 million native trees have been planted by Acción Andina across five countries.

GRST, a company based in Hong Kong, says it has created a cleaner, safer and cheaper process for making and recycling lithium-ion batteries.

These types of batteries are becoming more popular with the rise of electric vehicles. There are expected to be at least 125 million electric vehicles on the world's roads by 2030 and that means an increased demand for batteries.

But there's only a limited supply of lithium in the world.

GRST says it has found a way to build batteries without using toxic materials that can be recycled too.

This new process for making batteries produces 40% less greenhouse gas and GRST say the batteries last longer too.

There's a big problem with overfishing in many of our oceans and seas that harms wildlife and affects people who use the sea.

While governments are taking steps to protect marine ecosystems through special zones called Marine Protected Areas (MPAs), they can't always be fully protected.

WildAid aims to protect these zones by making sure fisheries within them are sticking to their conservation promise.

It helps increase the enforcement in MPAs by making sure the people involved have the right tools and resources to do the job.

The programme is already working with MPAs across the world.

Much of India's population lives outside of the country's cities and relies on farming to make money. But every year about 30% of their produce is wasted before it leaves the farms.

The changing cost of crops and the amount that is grown, which is often more than the demand, forces farmers to leave unsellable crops rotting in the fields. These wasted crops have used precious energy and water to grow them, and cost the farmers' time, resource and money to get rid of.

S4S Technologies aims to help by combating the food waste on these farms as well as rural poverty and gender inequality by helping female farmers.

Providing technology such as solar power, S4S is helping these farmers preserve unsold crops, cheaply, while also using the leftover crops to produce and sell valuable food products, such as ketchup.

Food production is said to be responsible for more than a quarter of harmful greenhouse gas emissions - one of the biggest causes of global warming.

Globally, farming techniques, such as ploughing, releases large amounts of carbon dioxide into the atmosphere.

Carbon dioxide is locked within soil so when it is disturbed it is released into the air, but if left undisturbed, soil stays full of natural nutrients that helps crops to grow.

Boomitra works with more than 150,000 farmers managing more than five million acres of land in some of the poorest parts of Africa, South America and Asia.

The aim is to monitor and reward farmers for the improvements they make to the soil, tracking its ability to store carbon over time.