Humans are not apex predators, but meat-eating on the rise worldwide A new paper in Proceedings of the National Academy of Sciences has measured the "trophic level" of human beings for the first time. Falling between 1 and 5.5, trophic levels refer to where species fit on the food chain. Apex predators like tigers and sharks are given a 5.5 on trophic scale since they survive almost entirely on consuming meat, while plants and phytoplankton, which make their own food, are at the bottom of the scale. Humans, according to the new paper, currently fall in the middle: 2.21. However, rising meat-eating in countries like China, India, and Brazil is pushing our trophic level higher with massive environmental impacts.
Green investors urge companies to clean up palm oil industry A coalition of investors and asset managers is urging stakeholders in the palm oil industry to adopt policies that exclude deforestation and human rights violations from their supply chains. The call, coordinated by Green Century Capital Management, was issued in the form of letters sent to 40 major palm oil producers, financiers and buyers.
APP's Borneo expansion to be constrained by forest conservation policy Asia Pulp & Paper (APP) will not convert any blocks of forest found to have high conservation value or substantial carbon stocks as it expands in Indonesian Borneo, according the forestry giant's managing director of sustainability. Responding to a report published by Greenomics, Aida Greenbury said APP's 10-month-old forest conservation policy applies to four suppliers operating in East and West Kalimantan.
Sky islands: exploring East Africa's last frontier The montane rainforests of East Africa are little-known to the global public. The Amazon and Congo loom much larger in our minds, while the savannas of East Africa remain the iconic ecosystems for the region. However these ancient, biodiverse forests—sitting on the tops of mountains rising from the African savanna—are home to some remarkable species, many found only in a single forest. A team of international scientists—Michele Menegon, Fabio Pupin, and Simon Loader—have made it their mission to document the little-known reptiles and amphibians in these so-called sky islands, many of which are highly imperiled.