Climate change poses a threat to global biodiversity from "summary" of NCERT Exemplar Problems-Solutions BIOLOGY class 12th by Arihant Experts
Global biodiversity is facing a grave threat due to climate change. The Earth's climate is changing at an unprecedented rate, primarily due to human activities such as burning fossil fuels, deforestation, and industrial processes. These activities release greenhouse gases into the atmosphere, leading to a rise in global temperatures. This increase in temperature has far-reaching consequences for the planet's biodiversity. One of the most significant impacts of climate change on biodiversity is the loss of habitat. As temperatures rise, many species are forced to migrate to higher altitudes or latitudes in search of suitable conditions. However, not all species can adapt to these rapid changes, leading to a loss of biodiversity in affected areas. Additionally, rising sea levels due to melting ice caps threaten coastal habitats, further endangering marine biodiversity. Climate change also disrupts ecosystems by altering seasonal patterns and weather conditions. Many species depend on specific environmental cues, such as temperature and rainfall, to breed, migrate, or hibernate. However, these cues are becoming increasingly unpredictable due to climate change, leading to mismatches in timing between species interactions. This disruption can have cascading effects on entire ecosystems, ultimately reducing biodiversity. Furthermore, climate change exacerbates existing threats to biodiversity, such as habitat destruction, pollution, and invasive species. For example, rising temperatures can make it easier for invasive species to thrive in new environments, outcompeting native species for resources. This competition can lead to the decline or extinction of native species, further reducing biodiversity.- Climate change poses a significant threat to global biodiversity by altering habitats, disrupting ecosystems, and exacerbating existing threats. Urgent action is needed to mitigate the effects of climate change and protect the planet's rich and diverse array of species. Only through collective efforts can we ensure the survival of Earth's biodiversity for future generations.
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