Wednesday, April 15, 2015

How is Global Warming killing us?

How is Global Warming killing us?

Though the term Global Warming is familiar to all of us, little do we know about its occurence, reasons and catastrophic effects. Here's throwing some light in lieu of creating awareness on this issue.

  • Global Warming is the increase of Earth's average surface temperature due to effect of greenhouse gases, such as carbon dioxide emissions from burning fossil fuels or from deforestation, which trap heat that would otherwise escape from Earth. This is a type of greenhouse effect.
  • Over the last century, global average temperature has increased by more than 1°F (0.7°C). The 2001-2010 decade is the warmest since 1880. Nine of the warmest years on record have occurred in just the last 10 years
Impacts and causes of Global Warming:
  • Rise in sea level : Shrinking land ice, such as mountain glaciers and polar ice sheets, is releasing water into the oceans.
    Also, as ocean temperatures rise, the warmer water expands. Trapped within a basin bounded by the continents, the water has nowhere to go but up. In some parts of the world, especially low-lying river deltas, local land is sinking (known as subsidence)—making sea levels that much higher. 
  • As our climate changes, the risk of injury, illness, and death from the resulting heat waves, wildfires, intense storms, and floods rises.

  • Climate-related threats to global food production include risks to grain, vegetable, and fruit crops, livestock, and fisheries.

  • Rising air temperatures bring heat waves, spread disease, shift plant and animal habitat and cause extreme weather events, from drought to blizzards.

  • Warmer oceans put coastal communities at risk, increase infrastructure costs, endanger polar creatures and threaten coral reefs and fisheries.

  • Humans use water for everything from drinking and bathing to growing crops, supporting livestock and fish farms, shipping goods, generating electricity, and simply relaxing and having fun. Yet climate change is producing profound changes in this precious commodity, threatening water availability, access, and even quality.      

  • As permafrost (frozen ground) thaws, it releases heat-trapping gases into the atmosphere, which accelerates global warming. It also alters local ecosystems and destabilises infrastructure, necessitating costly repairs.       

  • Loss of sea ice accelerates warming, threatens animals and peoples living in the Arctic and raises global security concerns. 

Enough fodder to digest and reflect for a time? 
Let us elaborate on actions that can reduce our own carbon emissions (and global warming, indirectly), in the next blog.


    Samuchit Enviro Tech.

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