Member - RHST Industries Inc.

A drop-in resilient agriculture technology that results in more crop per drop suited for long term performance.

Type Startup or self-employed
Founded 1992
Company Size 4
Member Type
Founders Thomas gradek
Headquarters Pointe-Claire, QC H9R 5P9, Canada
Social network
RHST Industries Inc.


As Dr. Bertrand Piccard noted during the epic voyage of the Solar Impulse, the immense amount of solar energy that is reaching the planet was powering the plane. The Earth's radiation budget refers to the difference between absorbed solar radiation and the net infrared radiation, taking into account the sum of all radiation, transferred in all directions, through the earth's atmosphere and to and from space. The radiation budget controls the Earth's temperature and rainfall. Water Vapor is the most prominent GHG in the atmosphere, and has the largest impact, on climate change, as it is responsible for 75% of global warming. NASA has acquired this data sine 1981 and attributes 50% of global warming to the positive feedback of radiative forcing of water vapor and 25% to the latent heat flux when water vapor condenses in the upper atmosphere. Agriculture consumes 70% of the freshwater resources on this planet and approximately 150 billion cubic meters of water is transferred into water vapor daily due to evapotranspiration from the earth's land surface. Between 41% - 50% is evaporation from the soil, in which case it has served no purpose for plants. The FAO estimates that by 2030 the planet will be at a water stress tipping point, where there is barely enough water to grow sufficient food for the earth's population. RHST has developed the "WATER PEARL" an inert, organic, superhydrophobic bead that is applied over the root zone of plants and such layer will reduce the loss of pore water in the soil, caused by evaporation. This will reduce plant abiotic stress caused by drought and induce more plant vigor and increase yield. Trials have demonstrated conditioning in young plants, whereby 25% - 30% biomass development was diverted from root growth to above-ground growth of shoots, with a reduction in the water footprint of up to 50%. This results in “more crop per drop”. As the water is retained in the soil, below the layer of “WATER PEARLS” the cover topsoil above the layer is too dry to germinate any weeds and therefore eliminates the need for herbicides. The reduction of water vapor formation also aids in fighting climate change by altering the positive feedback of the radiative forcing of water vapor. The reduction of water usage in agriculture allows for water recharge in the soil, as well as availability for other users. Today’s landscape for agriculture estimates 15% of the Earth’s land surface is used to grow food and 25% of the Earth’s surface is degraded soil or desert. Transformation of degraded farmland and deserts into arable land is possible with the use of “WATER PEARLS” as it can function in any type of soil substrate, regardless if it is sand or clay-rich organic soil. This “drop and walk” resilient organic agriculture technology is a solution to bolster food security, rescind water stress and impact climate change for a growing population
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Headquarters Pointe-Claire, QC H9R 5P9, Canada

SDG’s of application

The Sustainable Development Goals are a call to action to end poverty, protect the planet and ensure peace and prosperity everywhere.
Clean water and sanitation
SDG 6 icon
Affordable and clean energy
SDG 7 icon
Industry, innovation and infrastructure
SDG 9 icon
SDG 11
Sustainable cities and communities
SDG 11 icon
SDG 12
Responsible consumption and production
SDG 12 icon

Efficient Solutions

Labelled Solutions from RHST Industries Inc.

The Solar Impulse Efficient Solution label seeks to bridge the gap between ecology and economy, bringing together protection of the environment and financial viability to show that these solutions are not expensive fixes to problems, but rather opportunities for clean economic growth.

The information set out above, is solely for the purposes of information and the Solar Impulse Foundation does not provide any guarantee as to its authenticity, completeness or accuracy. To validate the Membership to the World Alliance for Efficient Solutions, the Solar Impulse Foundation only verifies that each entity is registered and has signed our principles and values stated in the following World Alliance for Efficient Solutions charter. For those Members who are also solution providers, this information does not constitute investment advice or a recommendation to buy into, transact or to enter into any agreement with any of the parties or persons mentioned above. Potential investors or interested parties are solely responsible for their investment or business decisions and for performing any due diligence required by the circumstances.