NGOs provide both short-term emergency aid and long-term aid to developing countries. They receive funding from private donors and foundations. An advantage is that aid from NGOs can directly target the poorest and be distributed quickly. A disadvantage is that NGOs rely on continued individual donations. Bilateral aid involves one country giving aid directly to another. While it provides large sums for big projects, much of the money may return to the donor country and it can be open to corruption and waste. Debt-for-nature swaps allow developing countries to reduce their debt in exchange for conserving nature, protecting the environment from exploitation. However, there is no guarantee countries will maintain conservation policies long-