New Delhi: To mark the annual Earth Day, leaders from more than 150 countries have committed to sign the landmark Paris Agreement on Climate Change at the headquarters of the United Nations (UN) in New York on Friday.

The agreement sets out a global action plan to put the world on track to avoid dangerous climate change by limiting global warming to well below 2°C.

It was approved by the 196 Parties to the United Nations Framework Convention of the Climate Change (UNFCCC) in COP21 in Paris on December 12, 2015.

The signing ceremony in New York will be the biggest signing of an agreement in history, according to the UN.

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The event is part of the step to transform the global accord into an actual tool for combating greenhouse gas emissions and boosting the use of cleaner energy.

Under the agreement, countries will be legally required to submit individual, five-year strategies for reducing their emissions, shifting away from oil, coal and natural gas and adopting cleaner energy sources such as solar and wind power or electric vehicles.

Celebrated every year on April 22, Earth Day aims to encourage people across the world to be more environmentally friendly. People across the globe participate in activities such as green campaigns to marks annual environmental awareness event.

Search engine Google is marking the day with a range of colourful illustrations of natural landscapes around the world on its Google Doodle edition.

The illustration highlighted Earth’s five major biomes namely the tundra, forest, grasslands, desert, and coral reefs.

While visiting the, users can keep refreshing the page to admire a different side of Earth’s immense beauty.

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