Callendar (Albert A. Callendar)

Albert A. Callendar was a scientist who, in the 1930s and 1940s, studied how carbon dioxide (CO₂) emissions from burning fossil fuels could affect Earth's climate. He proposed that increases in atmospheric CO₂ might lead to global warming, challenging the idea that climate remained stable. His work laid early groundwork for understanding human impacts on climate change. While he faced skepticism initially, his ideas contributed significantly to the development of climate science, highlighting the importance of greenhouse gases in regulating Earth's temperature and signaling the potential long-term consequences of fossil fuel use.