Groundbreaking mercury treaty adopted by 140 countries (Update)
More than 140 countries agreed Saturday on a ground-breaking treaty to rein in the use and emission of health-hazardous mercury, the UN said, but environmental activists lamented it did not go far enough.
Effect of CO2 on the integrity of well cement examined
Geologic carbon storage is the separation and capture of carbon dioxide (CO2) from large stationary sources, such as power plants, followed by injection into deep geologic formations. Long-term storage of ...
From downcycling to recycling: Using lighting to separate cement particles from stone
Every year several millions of tons of building rubble are produced. An efficient way of recycling concrete – the building material of the 20th and 21st century – does not yet exist. Researchers are working ...
Secret of sandcastle construction could help revive ancient building technique, researchers say
The secret of a successful sandcastle could aid the revival of an ancient eco-friendly building technique, according to research led by Durham University.
The secret of nanoparticle packing in cement
Cement production is responsible for 5% of carbon dioxide emissions. If we are to invent a "green" cement, we need to understand in more detail the legendary qualities of traditional Portland cement. A research group partly ...
A 'carbonizing dragon': Construction drives China's growing CO2 emissions
Constructing buildings, power-plants and roads has driven a substantial increase in China's CO2 emission growth, according to a new study involving the University of East Anglia (UEA).
Rich countries reluctant to help finance mercury treaty, UN officials say
Crisis-weary developed countries' reluctance to help finance a ground-breaking international treaty to rein in the use of health-hazardous mercury is threatening the accord, UN officials warned Thursday.