Thus, an uptick of carbon dioxide levels around us can indicate we’re in the presence of other humans, and also, perhaps, the pathogens they carry. To explore this phenomenon, [C Scott Ananian ...

a critical step in addressing rising CO2 levels linked to climate change. Unlike existing technologies, which are most ...

By 2050, atmospheric concentrations of CO2 will be 40 per cent higher than today’s levels if current trends continue, at roughly 570 parts per million (ppm). Many of today’s trees will still ...

In 2023, CO2 emissions from fossil fuels reached record levels, the researchers said. "The continued growth of global emissions shows clearly that it is more urgent than ever to act if we want to ...