An uplifting sinking feeling


  • Anonymous


A British ecologist has found evidence of something scientists have suspected for quite some time: tropical rain forests soak up excess CO2 from the atmosphere. By measuring the flux of CO2, water vapor, and heat over forests in Brazil's Jaru Reserve, John Grace of the University of Edinburgh observed that such regions are net absorbers of the gas, at a volume of one ton of CO2 per hectare of rain forest. In fact, photosynthetic gains outpaced respiratory losses in all seasons of the year, at all times except on the cloudiest of days.