What are the effects of climate change on food security?
Sea level rise due to climate change could engulf 17 percent of the land area in Bangladesh by 2050, diminishing cultivatable areas and causing 35 million people to be landless (Ismail, 2016).
How does climate change affect food and nutrition?
Climate change will also affect the type, amount and nutrient quality of food that can be produced. Studies have shown that increased temperature and elevated CO2 levels can reduce the nutrient density of some staple crops, which is of particular concern in low-income countries.
Why do people kill tigers?
Tiger hunting is the capture and killing of tigers. The tiger has historically been a popular big game animal and has been hunted for prestige as well as for taking trophies. Extensive poaching has continued even after such hunting became illegal and legal protection was provided to the tiger.
What are the natural causes of extinction?
Extinction occurs when species are diminished because of environmental forces (habitat fragmentation, global change, natural disaster, overexploitation of species for human use) or because of evolutionary changes in their members (genetic inbreeding, poor reproduction, decline in population numbers).
Why do we need to protect endangered species?
Healthy ecosystems depend on plant and animal species as their foundations. When a species becomes endangered, it is a sign that the ecosystem is slowly falling apart. Each species that is lost triggers the loss of other species within its ecosystem. Humans depend on healthy ecosystems to purify our environment.
How does the loss of species affect the ecosystem?
In ecosystems where species losses fall within intermediate projections of 21 to 40 percent of species, however, species loss is expected to reduce plant growth by 5 to 10 percent. The effect is comparable to the expected effects of climate warming and increased ultraviolet radiation due to stratospheric ozone loss.
What are the causes and consequences of loss of biodiversity?
The main cause of the loss of biodiversity can be attributed to the influence of human beings on the world’s ecosystem, In fact human beings have deeply altered the environment, and have modified the territory, exploiting the species directly, for example by fishing and hunting, changing the biogeochemical cycles and …