Every 24 hours, around 16 million tonnes of carbon dioxide is generated by automobiles and industries across the globe, while over 3 million people die every year because of air pollution.

Class X student of St Joseph’s High School Ravi Kumar Sinha shared these facts through his PowerPoint presentation on “Our planet Earth” at Sri Krishna Science Centre on Friday. Students from other institutes, including Delhi Public School, May Flower School and St Stephen’s School, took part in the contest organised by Sri Krishna Science Centre.

Earth Day is on April 22.

The centre is hosting a two-day programme on its premises to celebrate Earth Day. Friday’s programmes also included a poetry recitation contest.

On ways to minimise the effects of global warming, Ravi said: “Renewable energy is one way to protect the environment. Solar and wind energy should be utilised, while recycling of paper, glass, plastic and industry wastes would also help to tackle global warming.”

Ayush, a student of Gyan Niketan, suggested: “Global warming can be controlled by reducing the use of electricity and gas. Buying energy efficient products and launching plantation drives would also help control global warming.”

At the recitation contest, 13-year-old student Sonali recited her self-written poem, Poly bag mat banao, to discourage the use of polythene bags. “The bags are convenient to use but they also lead to pollution,” she said.

Class VIII student of RPS Residential School Atul Prakash recited his poem — Our Mother Earth — to speak on issues like pollution, population and industrialisation.

Prizes for Friday’s contests would be distributed at the science centre on Saturday when a science lecture and a painting competition will be organised.