Environmental issues in Nepal

More factors for loss of biodiversity include landslide and soil erosion, pollution, fire, overgrazing, illegal trade, hunting and smuggling.

Major threats to some protected areas are grazing all year around, poaching for high value products, illegal timber harvesting and unsustainable tourism.

[2] Mainly in rural and mountainous areas of the country, where people often have no ventilation in the home due to cold outdoor temperatures, they tend to use solid and biomass fuel.

Due to the lack of toilet facilities, inadequate sanitation, and solid waste disposal, children suffer from diarrhea and vector-related diseases.

Often cited causes of deforestation include population growth, high fuelwood consumption, infrastructure projects, and conversion of forests into grazing- and cropland.

[citation needed] Land degradation is attributed to population growth, improper use of agro-chemicals, and overly intensive use of landholdings that are too small to provide most households with sufficient food.

Policies often are hampered by lack of funding, insufficient understanding of Nepal's mountain ecosystems, bureaucratic inefficiency, and sometimes contentious relations between the central government and local communities.

Floods spread across the foothills of the Himalayas and bring landslides, leaving tens of thousands of houses and vast areas of farmland and roads destroyed.

[12] Analysis of trends from 1971 to 2014 by the Department of Hydrology and Meteorology (DHM) shows that the average annual maximum temperature has been increasing by 0.056 °C per year.

The polluted air visible as smog and piles of trash polluting the Bagmati in Kathmandu, 2023
Trash piles along and in the Dhobi Khola in Kathmandu in 2023