Climate change is affecting biodiversity in a variety of ways, including:

1. Altering ecosystems: Climate change is causing shifts in temperature and precipitation patterns, leading to changes in ecosystems and affecting species' habitats, food sources, and migration patterns. This can lead to changes in the distribution of species and the composition of ecosystems.

2. Threatening species survival: Many species have adapted to specific climatic conditions and are unable to cope with rapid changes. Climate change is therefore putting many species at risk of extinction, especially those that are already vulnerable due to habitat loss and other threats.

3. Increasing frequency and severity of extreme weather events: Climate change is causing more frequent and severe natural disasters such as hurricanes, droughts, and wildfires. These events can destroy habitats and cause mass die-offs of plant and animal species.

4. Changing phenology: Climate change is causing changes in the timing of biological events such as the timing of flowering, migration, and hibernation. This can cause mismatches between species, such as when migratory birds arrive at breeding grounds too late to find sufficient food resources.

5. Disrupting food webs: Climate change can affect the availability of food for species at different levels of the food chain, which can lead to population declines and even extinction.

Overall, climate change is one of the greatest threats to biodiversity and requires urgent action to mitigate its impacts.