KATHMANDU: Nepal's prime minister will present a piece of rock from Mount Everest to US President Barack Obama to highlight the impact of climate change on the Himalayas, the premier's aide said Sunday.

"Prime Minister Madhav Kumar Nepal will hand over pieces of Everest rocks to US President Barack Obama and UN Secretary General Ban Ki-moon to raise concern about global warming on the Himalayas," Bishnu Rijal, the premier's press advisor, told AFP.

The prime minister is heading to the US on Sunday evening to attend the UN General Assembly and the Climate Change Summit of the United Nations in New York next week.

Environmental campaigners refer to the Himalayas as the "Third Pole" and say the melting glaciers are the biggest potential contributors to rising sea levels after the North and South Poles.

While addressing the UN General Assembly, Nepal will inform the international community about the country's political situation and the ongoing peace process, according to Rijal.

Former rebel Maoists ended their decade-long bloody insurgency after striking a peace deal with the then-government in 2006.

Nepal took charge of the world's youngest republic in May after Maoist leader Prachanda resigned as prime minister in a row over the head of the army, plunging the nation into political chaos.

The coalition government that took over Nepal in May is widely seen as weak because it does not include the Maoists, the biggest party in parliament.