Al Gore Makes Your Landscaping Books Obsolete

From the UK's Telegraph:

Gardening books are being rendered out of date because climate change has altered growing seasons, an expert said yesterday.

Books written in the 1980s and early 90s, such as Geoff Hamilton's The First Time Garden from 1988, do not accurately reflect the fact that many plants that would normally be killed off by cold weather are now surviving longer through the winter. Guy Barten, of the Royal Horticultural Society, said climate change could transform gardening.