EarthBig cities warm up during the week as commuters flock in People warm up large cities such as Melbourne and Sydney by an average of 0.3°C each week, and temperatures drop over the weekends News
HealthMassive drop in London HIV rates may be due to internet drugs New HIV infections in gay men have dropped by around 40 per cent at some clinics, which could be thanks to people buying PrEP drugs from abroad via websites News