nothern tundra disadvantages and adventages
Answers
Answer:
plz plz plz plz plz plz mark me as a brainliest plz plz plz plz plz .... I have to collect 5 ... I have received 4 ... only 1 is left for the next level plz plz plz mark me as a brainliest
Tundra is among the world's coldest, harshest biomes, with extreme temperatures and low rainfall. But these environments in the Arctic and on mountains are far from invulnerable, displaying sensitivity to human disruptions and climate change.
Threats to tundra
- Climate change:
A warmer climate could radically change tundra landscapes and what species are able to live in them. Warming creates potential feedback loops that encourage further destabilization of tundra ecosystems. The release of methane from deteriorating permafrost, for example, feeds the thawing cycle, while higher temperatures drive the growth of shrubs, which can change soil temperature and prevent snow from reflecting out heat.
- Air pollution:
Air pollution affects tundra environments in different ways. A recent study found that Arctic clouds are particularly sensitive to air pollution, which spurs cloud formation and has a blanketing effect. Black carbon from diesel engines, fires, and other combustion can settle on snow, decreasing its ability to reflect sunlight and causing faster melting.
- Industrial activity:
The oil, gas, and mining industries can disrupt fragile tundra habitats. Drilling wells can thaw permafrost, while heavy vehicles and pipeline construction can damage soil and prevent vegetation from returning. This activity also increases the risk of toxic spills. Seismic testing for oil and gas operations in the 1980s left tracks on the tundra that are still visible decades later.
- Invasive and migrating species:
Climate change is driving down populations of some Arctic tundra natives such as caribou (also known as reindeer) by fostering an increase in parasites and disease while damaging food sources. But other species, such as shrubs and the wolf spider, are thriving.