LifeBrighter sky helped boost US crop yields – but it may not last Some 27 per cent of the rise in maize yields over the last 30 years may be down to clearer skies and more sunshine hitting the fields, not better technology 51¶¯Âþ
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 51¶¯Âþ