What is happening to global biodiversity?
Pollution, climate change, and population growth are all threats to biodiversity. These threats have caused an unprecedented rise in the rate of species extinction. Some scientists estimate that half of all species on Earth will be wiped out within the next century.
Why is biodiversity a crisis?
Unlike the five previous mass extinctions, the current one is a result of detrimental human activities. Current human-caused biodiversity loss is the result activities such as habitat destruction, the introduction of exotic invasive species, and the over-harvesting of species.
What is the biodiversity crisis and why is it a concern?
Biodiversity loss disrupts the functioning of ecosystems, making them more vulnerable to perturbations and less able to supply humans with needed services.
What is the main cause of global biodiversity breakdown?
Biodiversity, or the variety of all living things on our planet, has been declining at an alarming rate in recent years, mainly due to human activities, such as land use changes, pollution and climate change.
What is the global impact of loss of biodiversity?
Biodiversity loss can have significant direct human health impacts if ecosystem services are no longer adequate to meet social needs. Indirectly, changes in ecosystem services affect livelihoods, income, local migration and, on occasion, may even cause or exacerbate political conflict.
What are the effects of biodiversity?
These ecological effects of biodiversity in turn are affected by both climate change through enhanced greenhouse gases, aerosols and loss of land cover, and biological diversity, causing a rapid loss of biodiversity and extinctions of species and local populations.
What would happen if there was no biodiversity?
Biodiversity underpins the health of the planet and has a direct impact on all our lives. Put simply, reduced biodiversity means millions of people face a future where food supplies are more vulnerable to pests and disease, and where fresh water is in irregular or short supply.
Why is biodiversity important globally?
Biodiversity Ensures Health and Food Security.
Biodiversity underpins global nutrition and food security. Millions of species work together to provide us with a large array of fruits, vegetables and animal products essential to a healthy, balanced diet – but they are increasingly under threat.
What causes biodiversity?
The various factors that influence biodiversity include -temperature, altitude, precipitation, soils, and their relation with other species. For instance, ocean biodiversity is 25 times lesser than terrestrial diversity. Biodiversity also increases its form as it moves from the poles towards the tropics.