Benefits of disaster risk reduction

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Investing in disaster risk reduction (DRR) saves lives and money and future-proofs our development gains.

Investments in DRR not only curb disaster losses. They also yield economic, social and environmental benefits that enhance the well-being and resilience of countries and communities.

People planting mangrove trees
The benefits of mangrove preservation and restoration are up to 10 times the costs. Photo: Suhutterstock.com

Here are a few examples across the sustainable development goals.

The resilience dividends across the SDGs

Resilient infrastructure

  • In low- and middle-income countries,  investing in more resilient infrastructure  yields US $4 in benefit for each $1 invested.
  • Investing in low carbon microgrids can increase disaster resilience, while contributing to emission reduction.

Early warning and early action

  • Just 24 hours warning of a coming storm or heat wave can cut the ensuing damage by 30 percent. Spending US $800 million on such systems in developing countries would avoid losses of $3–16 billion per year.

Employment and poverty reduction

Food security and agriculture

Urban resilience

DRR investments in cities not only reduce disaster risk, they also improve the quality of life in urban settings.

  • An investment in smart surface technologies - such as solar roofs, green roofs, and porous and high albedo pavements - would result in net present values of US $1.8 billion in Washington, D.C., $3.6 billion in Philadelphia and $540 million El Paso over a 40-year period. These technologies can effectively address the severe cost of worse air quality, higher pollution and excess heat in urban low-income areas
  • Trees and vegetation can lower local land temperatures by up to 5-6℃ on days of extreme heat, reducing energy use for air conditioning.  Urban forests also improve the quality of life in cities: they reduce air and noise pollution; help filter and regulate water and provide spaces for recreation and physical activity.

Nature-based solutions

Built infrastructure systems can be supported by nature-based solutions to reduce disaster risk, while strategically conserving or restoring ecosystems and supporting livelihoods.

Water

Securing water for our societies by 2030 could cost just over 1% of global GDP —about 29 cents per person, per day from 2015-2030. The economic benefits clearly outweigh the costs: every dollar invested in water access and sanitation yields an average $6.80 in returns.

The cost of inaction

Research suggests that the cost of climate change is widely undersestimated. If we do not invest in climate action and disaster risk reduction, the economic and human toll of disasters will rise dramatically.

The opportunity

COVID-19 has disrupted billions of lives and laid bare severe and systemic inequalities. As the world plunges in the deepest global recession since WWII, the United Nations is calling for a large-scale, coordinated and comprehensive relief package - amounting to at least 10% of the global economy.

This unprecedented level of investment provides a once in a lifetime opportunity to build back better and steer the world onto a safer, healthier, more sustainable and inclusive path. We must ensure the resources poured into these investments are not lost to disasters, and that new infrastructure doesn’t translate into new risks.

The Sendai Framework sets out an agreed global blueprint for addressing risk. We must strengthen the capacity of people, communities, countries and systems to understand risk,  withstand and bounce back from shocks, persist through stresses and transform through crises.

We must act with urgency and with greater ambition, proportional to the scale of the threat.