The world's burgeoning billions have been kept fed thanks to the "Green Revolution" of the 20th century, which featured new hybridized crops with enhanced yields. Often deemed a miracle of science, it was also made possible by energy-intensive industrial fertilizers. Fritz Haber and Carl Bosch were each awarded the Nobel Prize for their contributions to the widely used processes for synthesizing ammonia from nitrogen taken from ambient air and hydrogen derived from fossil fuels. These ammonia-based nitrogen fertilizers, along with mined fertilizers, today help to feed the world, something Thomas Robert Malthus never envisioned in his 18th century writings warning of overpopulation.
Today we are concerned with another green revolution that seeks to end the use of fossil fuels, which when burned create emissions that are dangerously warming the atmosphere and creating the need for a second agricultural revolution to ensure the world's billions can still be fed in the face of drastic climatic extremes. So as we look to decarbonize the world's economy and phase out the use of fossil fuels, what is the fertilizer industry doing to green its highly fossil fuel-dependent industrial and mining processes?
We hear from Hiro Iwanaga of Talus Renewables, a nitrogen fertilizer startup at the forefront of using photovoltaics to crack hydrogen from water, rather than fossil fuels. Also freshly returned from Dubai, Iwanaga talks about his company's demonstration project now under way in Kenya, and the company's next projects here in the United States.
"When you look at the United States, I actually think over the next couple of years, Talus will deploy the majority of its systems into the United States supported by the green hydrogen tax credit. That would not have been possible a couple of years ago."
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