From ROGER HELMER MEP
Conservative, East Midlands
Water resources for agriculture
In your important article about global water resources (May 22nd), you lament the fact that “no one has yet managed to produce plants that offer dramatically more crop per drop”. Yet there is a development which offers precisely that outcome.
Rising atmospheric CO2 levels dramatically increase crop yields. Indeed many horticulturalists deliberately raise CO2 levels in greenhouses by a factor of three, from below 400 ppm to around 1200 ppm, to enhance growth rates and yields. Less well known is the fact that this technique delivers not only rapid growth, but also more efficient water use — more “crop per drop”.
It is a great shame that climate alarmists not only exaggerate the potential problems of rising atmospheric CO2, but stubbornly ignore the many benefits, especially in terms of feeding a growing world population.
ROGER HELMER MEP