Science
Hydrogen as fuel: we should be selective about how we make and use it
Hydrogen is a useful substitute for fossil fuels, but new research shows leakages can be very damaging to the environment
Science | 3 August 2022
South African engineers are trying to solve the global water crisis
But better politics as much as good engineering may be key
Science | 11 July 2022
Scientists sound alarm on badly run medical studies
More than half of clinical trials analysed showed a high risk of bias. It was especially bad for drug and alcohol studies.
By James Stent
Science | 13 June 2022
Ivermectin sent back to the worms by medicines regulator
Programme allowing the import and store of controversial drug for use against Covid brought to an end
By James Stent
Science | 30 May 2022
Nearly everyone in South Africa has Covid antibodies, study shows
Survey of blood donors in March finds 98% of adults are either vaccinated, previously infected or both
By James Stent
Science | 27 May 2022
Dirty air is invisible, but a real threat to health
Here’s how we can keep the air healthy at home, at work and on public transport
By Gareth Kantor and Jennifer Stearns
Science | 18 May 2022
Two years into the Covid disaster, where do we stand?
Far fewer people are dying but the disease remains extremely serious
By Nathan Geffen and Marcus Low
Science | 12 May 2022
Waste plastic could beat coal as an energy source
We can eliminate this toxic pollutant - and make it profitable
Neil Stacey, James Fox, Klaus Moller, Diane Hildebrandt, David Glasser, and Celestin Sempuga
Science | 10 May 2022
Fresh air and better houses are weapons in the fight against TB
The disease has been rare in rich countries for 50 years, and one reason is decent housing
By James Stent
Science | 10 May 2022