Insects are in decline, around the world. How worried should we be?
Widely reported studies this year and last led to headlines globally of an ‘insect Armageddon.’ The real story of insects is more nuanced — but probably just as unsettling. This article was originally published on the site of Ensia. When Susan Weller travelled to Ecuador to study tiger moths in the 1980s, she found plenty
Rob Baan (Koppert Cress): vegetables are healthy, but we’re not allowed to claim so
Five years ago, we visited the outstanding horticultural company Koppert Cress in Monster near The Hague in the Netherlands. Then already, general manager Rob Baan told us that horticulture should concentrate on fresh produce for a healthy diet; with ingredients that help overcome diseases like cancer, obesity and diabetes 2. But health claims are supposed
Biocomposites for cars
Every year the European car industry uses around 80,000 tonnes of wood and plant fibres to reinforce composites, instead of synthetic fibres like glass and carbon fibre. Biocomposites have become increasingly popular with car manufacturers because they can reduce vehicle weight, which improves performance and lowers CO2 emissions. They are used in car interiors for
Productive soils as a carbon sink
We know that plants grow faster in CO2-rich environments. Horticulturalists enrich the atmosphere in their greenhouses with CO2 to ensure better productivity. Can we imagine fast growing plants that would capture CO2 from the air, and on a large scale? A carbon sink, as it were? Yes we can, and we can do it in
Tetraethyl lead, the scandal that never erupted
Modern history is full of stories of new chemicals sold on a large scale and afterwards causing problems. Sometimes, this causes a major upheaval. But by far the largest poisoning in history, that by tetraethyl lead, never ended in a scandal. It just faded away, even though oil and motor car companies neglected well-known dangers,
Affordable green homes
Some proponents of affordable housing may be under the impression that sustainable homes are more expensive to construct and maintain than those built using traditional means. However, there are actually a number of sustainable practices that can make green homes more affordable than traditional homes for their inhabitants. There are a number of cost-effective green
Limits to biomass use
Since the turn of the century, there is a discussion raging on the limits to biomass use for energy purposes, in order to control man-made CO2 emissions. After having been greeted with enthusiasm at first, bioenergy is now met with many more restrictions. How do we look upon this after all these years? This is
Indirect effects, we often ignore them
‘Again and again, new products fascinate us: the smartphone, the airplane wing that can be glued, new medicines,’ says Ton Schoot Uiterkamp, ‘but we do not think in terms of chains and generally ignore the indirect effects of these inventions. If the first use is wonderful, we ignore the consequences of second, third and fourth
on: 5 November 2018