Welcome to the environmentalresearchweb newswire. This week we bring you details of the Arctic river ice that's becoming less reliable, a rise in the amount of land growing crops for export, how local knowledge can minimize the impact of offshore wind farms, and more. Simply click on the headlines below to read the full stories.

City-grown vegetables could feed urban dwellers
30 Jul, 2014
On average, just one-third of cultivatable urban land could meet residents' veg needs

Understanding changes in precipitation
29 Jul, 2014
Simple energy balance model offers surprisingly good results

Environmental research round-up
28 Jul, 2014
Highlights from Environmental Research Letters (ERL), including biorefineries, African wildfires and surface darkening, farming in the Holocene, gas carbon footprint, and more.

How has water availability for growing maize in Africa changed?
25 Jul, 2014
Southern Africa and some Sahelian countries benefiting but Tanzania and Malawi have seen less water

No hiatus for temperature extremes
24 Jul, 2014
Unlike average temperatures, the rate of increase of extremes has not slowed over the last 15 years