94 Climate Management Issues
Spring, arriving earlier in some areas, is now inuencing the timing of bird
and sh migration, egg laying, leaf unfolding, and spring planting for agri-
culture. In fact, based on satellite imagery documentation of the Northern
Hemisphere, growing seasons have steadily become longer since 1980.
Although species have been faced with changing environments in the past
and have been able to adapt in many cases, the IPCC climate change scien-
tistsview this current rate of change with alarm. They fully expect the magni-
tude of these changes to increase with the temperatures over the next century
and beyond. The concern is that many species and ecosystems will not be able
to adapt as rapidly as the effects of climate cha ...