There exists only treaties marking geographical limits that do not take into consideration shared water resources. Along with the Ramsar sites below, UNESCO recognizes the Maya Site of Copan and the Río Plátano Biosphere Reserve as World Heritage Sites. These protected areas offer ecosystem services such as protection from floods, and natural water purification. Deforestation, poor water resource management and climate change may all factor into the future health of these protected areas. Ramsar sites in Honduras:  "Source:" Ramsar 2005. The Global Climate Risk Index 4 constructed for the period between 1997 and 2006 and covering both human and economic impacts, ranks Honduras 1st in the world, underscoring the country’s very high vulnerability to climate related events, mostly to storms. This vulnerability was evident when Hurricane Mitch struck Honduras in 1998 causing $4 billion in damage and claiming 7,000 lives. Yet climate change is expected to bring even greater weather variability to Honduras with less precipitation overall but more powerful storms and heavy rain during hurricane season spawning landslides and floods. Tegucigalpa and neighboring Comayagüela (which together form the Honduran capital) are the most affected, due to deforestation and the increased vulnerability to landslides. According to the first national communication to the United Nations Framework Convention on Climate Change, the following future impacts from climate change are expected in Honduras: 1) Temperature increases will occur that may alter precipitation patterns and irrigation schedules with the highest temperature increases in May and June. 2) Reduction in precipitation totals with the largest reductions occurring between November and April. "Source: World Bank Climate Change country note on Honduras". In an effort to increase exports under global demand for wood, Honduras has cut down forest at an increasing rate and by 1996, annual deforestation was at 108,000 ha. About 170,000 ha of land in Honduras are subject to soil erosion. Without forest in place, rains have eroded large areas of land and rivers are carrying valuable topsoil downstream. Where dams are built, they have begun to silt up with the possible effect of reducing their hydroelectric potential. In 2007, The World Bank approved a US$30 million loan for the Water and Sanitation Sector Modernization Project in Honduras. Relevant water resource management objectives include: 1) Reinforce the national sector actors to fulfill their new roles as a necessity for successful decentralization of the services; and 2) Reduce non-revenue water in selected areas of Tegucigalpa to provide immediate impact on the service quality. Jane Armitage, World Bank Director for Central America, says,"The Water and Sanitation Sector Modernization Project will not only enable an environment that develops and strengthens service providers, but also will foster transparency and improve their effectiveness in the water sector".