KGO ABC World News Tonight With David Muir February 21, 2022 23:57:00
Water. and currents bring nutrient-rich cold water from antarctica. but as water warms, that cold water doesn't make it to the surface. and without those nutrients, fish and algae die off and animals that feed on them face starvation. back on land, we hike to find marine iguanas. their population, scientists say, are now becoming a barometer of climate change. >> they are perfect environmental indicators. they can tell you how healthy an environment is. they specialize in only feeding on green algae. but there's a problem with water becoming warmer and having more extreme temperatures. >> repo...
Source: archive.org
