Santa Cruz Sentinel: Gray whales swim off the Big Sur coast as they migrate toward Baja California. Scientists say climate change is forcing the whales to begin their migration later«1» Out in the deep waters of Monterey Bay, gray whales will be swimming home later this month after a brief winter vacation in Baja California. Whale watchers and marine scientists say these whales have been delaying their southern sojourns and point to climate change as the culprit. Rising sea …