Author Archives: Rolf Schuttenhelm

Rare earth getting rarer

State-backed holding company Chinalco – China, Aluminum, Corporation – yesterday announced it will invest 1.5 billion dollars in ‘rare earth’, the collection of 17 trace elements like scandium, yttrium and the lanthanides, which include the densest of metals: iridium – … Continue reading →

Geoengineering vs ‘extreme geoengineering’

Current proposals for geoengineering, measures to directly influence parts of system Earth, like the global climate system, seem overestimated – with respect to their proclaimed beneficial outcomes. Last month science magazine PNAS published an overview of some of the better … Continue reading →

Graphene: researchers jump chemical prodigy

Improved battery technology may be an important step towards increased electrification of road transport, and may one day, through a network of on-grid EVs, help create the dreamed global storage facility for green electricity – alleviating the problems the straggling … Continue reading →