TO CELEBRATE Earth Day in Singapore, more than 10 companies, schools and organisations will pitch in to plant some 790 trees in various parks, nature reserves and park connectors across the island in the next two weeks.

Among the participating schools is Shuqun Primary School, which will be planting 83 trees to commemorate its 83rd anniversary on Tuesday.

Companies such as Novartis Institute for Tropical Diseases, SoulCentre, HBO Asia, Deutsche Bank and Cisco Systems will also contribute to Earth Day by planting between 50 and 150 trees each.

The Plant-A-Tree programme was conceptualised by the Singapore Environment Council and the Garden City Fund to provide an avenue for individuals and organisations to do their part for nature through planting of trees at designated parks and nature reserves.

To date, 690 trees have been planted by 13 organisations and individuals since its launch in November 2007, said the National Parks Board on Monday.

About 1,200 trees have been pledged to be planted in the next few months.

In parks and nature reserves around Singapore, the NParks has organised various activities to increase the awareness of the importance of conservation and caring for the environment.

They include a special preview of the award winning documentary 'An Inconvenient Truth' on the consequences of global warming at the Singapore Botanic Gardens on April 20.

Free guided walks will also be organised for the public at Pasir Ris Park Mangrove, Sungei Buloh Wetland Reserve, Fort Canning Park and the HortPark.

Earth Day falls on April 22 every year and it marks the anniversary of the birth of the modern environmental movement in 1970. It is celebrated by many countries around the world.