Showing posts with label same amount. Show all posts
Showing posts with label same amount. Show all posts

19 January, 2019

If edible insect are the future, use should talk about poop

TWO BILLION PEOPLE can’t be wrong—at least, not about the nearly 2,000 species of insects that make for good eatin’ around the world. But nobody has to pitch you on the benefits of insectivory, right? Easier on the environment, full of weird nutrients, and whoa, check out that feed conversion ratio: It takes half as much food as you’d give to pigs and chickens and a twelfth as much as cattle to get the same amount of cricket protein on the far side of the abattoir. If Earth might have to feed 9 billion people in the coming decades, insects are what’s for dinner. Ask the United Nations.
Insects for dinner?
But let’s slow down this Snowpiercer train a bit. Insects like crickets and beetles are, indeed, a very good source of protein and other nutrients. But the ones that humans already eat tend to be wild-caught and consumed in comparatively small numbers. That’s not the scaled-up future of insectivory that the UN foresaw in 2013. Factory farm facilities that can breed, raise, kill, and ship millions of critters require more food as input, output more waste, and raise thorny issues from entomology to ethics. “Actually, we don’t know that much,” says Åsa Berggren, an ecologist at the Swedish University of Agricultural Sciences in Uppsala who has been trying to sort out how sustainable an insect-based menu would be. “And people don’t know what we don’t know.”


Read the story from Wired by Adam Rogers - “If edible insect are the future, use should talk about poop."

11 May, 2018

Cracking a climate conundrum

In 2015, we earthlings – some 7.5 billion of us – discharged 36 billion tons of carbon dioxide into the air from many tailpipes and smokestacks. That is about the same amount of planet-warming gas belched out in 2014, and the figure remained largely unchanged in 2016.
Forest fires in Indonesia, September 2011.
After a century of exponential growth in the mass of carbon dioxide ejected into the air, the leveling-off of the output caught many observers by surprise. It’s explained partly by widespread substitution of natural gas for coal in electricity production and by expanded use of wind and solar energy.

Although the amount of CO2 ejected into the air leveled off in 2015, the quantity accumulating in the atmosphere did not let up. Rather, it spiked. Indeed, the concentration of the gas increased that year by 3 parts per million (ppm), 50 percent more than in the previous year and the average annual increase of the prior four decades. Researchers hadn’t observed an increase so large since they began systematic measurements of CO2 in the atmosphere back in 1958. The amount of CO2 in the air probably hadn’t surged so much in a single year since at least the end of the last ice age – 10,000 years ago.

Read the story by Daniel Grossman from Yale Climate Connections - “Cracking a climate conundrum.”