Daniel Lemire is a computer science professor at the Data Science Laboratory of the Université du Québec (TÉLUQ) in Montreal. His research is focused on software performance and data engineering. He is a techno-optimist and a free-speech advocate.
Many climate models predict that increased CO2 will impact clouds which would cause much of the predicted warming, since CO2 by itself is not very potent. New research published in Nature makes these models implausible. According to the authors, it makes it improbable that the climate is highly sensitive to CO2 levels.
Goklany (2020) estimates that over 60% of our food production is dependent on fossil-fuel technologies. Currently, 12% of the land (excluding Antartica) is devoted to agriculture (cropland). Without fossil fuel, this percentage would need to move to 33%. The process of cropland expansion would harm biodiversity, increase food prices, and increase food insecurity among the poor.