KATHMANDU (AFP) - South Asian ministers will gather in Nepal next week for talks on the threat that climate change poses to the Himalayas and to the 1.3 billion people dependent on water flowing from the mountains. Experts say the Himalayan glaciers are melting at an alarming rate and with months to go before a key summit in Copenhagen, mountain nations are hoping to highlight the myriad of problems facing the region. Climate change 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. But until now Himalayan governments have not come together to lobby for ambitious emission reduction targets at Decembers Copenhagen summit, which aims to seal a new international climate change accord. Nepals message needs to be heard, and the message of the mountains needs to be heard, said World Bank water and climate expert Claudia Sadoff, who is helping Nepals government organise the August 31-September 1 conference. The Himalayas have their own very real set of challenges, but there are also a lot of adaptation and mitigation opportunities in the mountains. Glaciers in the Himalayas, a 2,400-kilometre range that sweeps through Pakistan, India, China, Nepal and Bhutan, provide headwaters for Asias nine largest rivers, a lifeline for the 1.3 billion people who live downstream. But temperatures in the region have increased by between 0.15 and 0.6 degrees Celsius per decade for the last 30 years, and the effects are already being felt. In Nepal and Bhutan, the melting glaciers have formed vast lakes that threaten to burst, devastating communities downstream. Low-lying Bangladesh has always been prone to flooding, but leading environment scientist Atiq Rahman said the speed at which the Himalayan glaciers were melting meant floods were now more frequent and more vigorous. Last year Nepal suffered its driest winter in 40 years, bringing the first widespread forest fires the country has experienced and destroying crops that depend on the winter rains. Campaigners say that while the effects of climate change on low-lying South Asian countries such as Bangladesh and the Maldives are now well known, there is little international awareness of the vulnerability of the Himalayan region. The general impression is that the Himalayas are huge, impregnable, pristine spaces no one can hurt. But the fact is that they are melting, said Tariq Aziz, leader of the WWFs Living Himalayas initiative. The Himalayas are not just mountains. They are a source of sustenance for millions and their most valuable commodity is water. Nepals government, which has invited environment ministers from across South Asia to attend the talks, said it hoped to take a regional voice on climate change to Copenhagen.