BusinessGreen: Cities around Europe may have to erect flood barriers similar to the Thames Barrier that protects London from sea surges, as climate change takes hold and leads to the danger of much more destructive storms, floods, heavy rainfall and higher sea levels, Europe's environmental watchdog has warned. The effects of climate change will be so far-reaching across the continent that vineyards may have to plant new grape varieties, farmers may have to cultivate new crops and water suppliers look to technology...