00:00How is climate change affecting biodiversity?
00:06Plants, animals, fungi.
00:09We share our planet with millions of other species,
00:13all interacting in different environments.
00:15This is what we think of as biodiversity,
00:18and it's threatened by climate change,
00:21especially by rising temperatures.
00:24Habitats often change faster than the species
00:27that live in them can adapt.
00:29Like the polar bear,
00:31polar regions have grown warmer in the last few decades,
00:34causing vast stretches of sea ice to melt,
00:37and that's having an impact on polar bears
00:40which depend on the ice to hunt seals.
00:43Elsewhere, water is growing scarce.
00:46Forests are suffering as a result.
00:49Trees don't react quickly to environmental change.
00:52They take a long time to reproduce and adapt to new circumstances.
00:56When weakened by drought, they absorb less CO2 and produce less oxygen.
01:02That leaves them more vulnerable to pests and wildfires.
01:08Climate change is also altering the timing of some natural events.
01:13Many plants now flower earlier in the year than they did just a few decades ago.
01:17This is causing major problems for bees.
01:21They arrive too late and miss out on important food sources,
01:25and plants miss out on their pollinating services.
01:29Warmer temperatures are also causing some caterpillars to emerge earlier.
01:34That affects birds like the great tit,
01:36which raises its young in tandem with the insect's life cycle.
01:40If the caterpillar prey has already pupated,
01:43it can seriously affect a crucial feeding period for the young birds.
01:47The effects of climate change on biodiversity are complex
01:52and often less visible than melting glaciers or dried up rivers.
01:57Because in an ecosystem, everything is interconnected,
02:01and when one species suffers, the consequences can have an impact on many others.
02:08of the laws of China overril whereas of a large amounts of smoke,
02:12the full М sensitive language is intense and SAYs.
02:14It's not less sensitive and weak.
02:14It may be a coma when repeat.
02:14It's the only區 dips that do you 최고.ковrona
