International Rainwater Harvesting Alliance

Alliance internationale pour la gestion de l'eau de pluie (IRHA)

Alianza internacional para la gestión del agua de lluvia (IRHA)

Organization in Special Consultative Status with the Economic and Social Council of the United Nations - July 2010
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The International Rainwater Harvesting Alliance (IRHA) was created in Geneva in November 2002 following recommendations formulated during the World Summit for Sustainable Development in Johannesburg two months earlier. The mandate called for federation and unification of the disparate rainwater harvesting (RWH) movement around the world…

More about IRHA




Today, the water crisis seriously threatens several part of the planet. Nevertheless, the primary water resource on the Earth, rainwater, is often seen as a burden rather than an opportunity. It is badly or not at all managed as a water resource these days almost everywhere in the world.

On the 21 July, two organizations working in this field, the International Rainwater Harvesting Alliance (IRHA) and the American Rainwater Catchment Systems Association (ARCSA), signed a Memorandum of Understanding, which aims to facilitate their future collaboration in promoting the effective collection and use of rainwater.



Recent Event

2014 Caux Dialogue on Land and Security, Initiatives on Land, Lives and Peace.


IRHA will be presenting the benefits of Rainwater Harvesting and Management for agriculture in arid/semi-arid regions as well as as a tool for peace. Find out more about how RWH can be an instrument for peace by watching our exclusive interview with HE Mr. Ramos Horta, Nobel Peace (Nov ’13).


Journalists for Rainwater Harvesting

This group brings together the talents of journalists in order to raise the profile of rainwater harvesting. Journalists for Rainwater Harvesting research, write and publish articles about rainwater harvesting in their local, regional or national area.

Read their articles here…

Blue Schools projects

We have recently finished several Blue Schools projects – from Nepal to Senegal – and we have even more under formulation or in the process of fundraising. Find out more about these, and all our other, Blue Schools projects!

Read more…

Video in the spotlight:

IRHA Meets His Excellency Mr. Ramos-Horta

Watch more videos…

Raindrops Geneva Award 2013

- Exhibition -

To celebrate World Water Day 2014, IRHA is organising an exhibition of this edition’s Raindrops Geneva Award 2013, with the precious support of the République et Canton de Genève.

When? 22-28th March 2014

Where? Hotel de Ville, GenèveLOGORCGE_noir72dpi_FRU

Activities Report 2013, from 1st January to 31st December 2013

reReport, 4.2 MiB, PDF

trainingIndia2010French version (not yet available), 849.6 KiB, PDF


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