Climate change could alter forests, crop yields and water supplies as we know them. Changing climate also affects human and animal health and their ability to exist in certain ecosystems. As a rangeland quickly changes into expanding desert, for instance, it forces native species to adapt or move elsewhere
Ice cores drawn from Greenland, Antarctica, and tropical mountain glaciers show that Earth’s climate responds to changes in greenhouse gas levels. Ancient evidence can also be found in tree rings, ocean sediments, coral reefs, and layers of sedimentary rocks.
What l is the scientific reason for climate change?
Scientists attribute the global warming trend observed since the mid-20th century to the human expansion of the “greenhouse effect” — warming that results when the atmosphere traps heat radiating from Earth toward space. Certain gases in the atmosphere block heat from escaping.
Humans impact the physical environment in many ways: overpopulation, pollution, burning fossil fuels, and deforestation. Changes like these have triggered climate change, soil erosion, poor air quality, and undrinkable water.
Even if we try to reduce carbon level in the atmosphere, it may take a long time to accomplish…
Be aware not to anyone but to your own actions…