aboveground

Distribution of above-ground biomass in the Amazon in metric tons per hectare. Riparian vegetation along watercourses can be seen to correspond to lower biomass density. Credit: Jean Pierre Ometto Publication of a new map showing all the above-ground biomass in the Brazilian Amazon is good news in the context of the severe crisis afflicting the world's largest contiguous tropical rainforest. Using airborne laser scanning and…

If you want to enjoy a pool this summer without all of the hassle and cost of a major construction project, consider an above-ground pool. Most above-ground pools are designed for easy setup, which means you could get yours ready for water in about an hour or less. Plus, these pools have come a long way. Advancements in the polyester and PVC used to make the liner walls have made them significantly more puncture and tear-resistant. Today's above-ground pool frames usually get created using rust and corrosion-resitant…