気候変動が全球生物多様性に与える影響（導入部）
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The Impact of Climate Change on Global Biodiversity
Introduction
Climate change is one of the most pressing environmental issues facing our planet today. Its effects are far-reaching and multifaceted, impacting ecosystems worldwide. One of the most significant consequences of climate change is its profound impact on global biodiversity.
Rising Temperatures and Habitat Loss
As temperatures rise due to increased greenhouse gas emissions, many species struggle to adapt quickly enough to survive in their changing environments. This leads to habitat loss and fragmentation, forcing animals and plants to migrate or face extinction.
Figure 1: Decline in Arctic Sea Ice Extent Over Time
Ocean Acidification and Marine Life
Another critical aspect of climate change is ocean acidification, caused by the absorption of excess carbon dioxide from the atmosphere. This process threatens marine life, particularly organisms with calcium carbonate shells, such as corals and mollusks.