India - (1a) - My virtual profile

Environment   Aug 23, 2017 by Aditya Sriram

A) What is you vision on a sustainable world?

The world must be not spending coal and fossil fuels on eveerything. We must use solar energy and only coal is used in case of emergancy.

B)What are you planning to do this a reality?

Before answering, we must know about climate change

Sustainable development means meeting the needs of the present without compromising the ability of future generations to meet their own needs. What world citizens did to change the way we use resources early in this century will influence how we live for generations in the future.

Some kinds of sustainable energy include solar energy, wind energy, hydroelectric energy, tidal energy, etc. Using these energy, we can cause sustainable development to actually happen.

CLIMATE CHANGE

The general increase of greenhouse gas levels is shown in the table below, in parts per billion:

This shows how rapidly sea greenhouse gases increase. This causes a lot of heat and sea level rise. We heard the temperature increased by 1.5 degrees Celsius. If this continues,we need to look forward to this in 50 years.

Year      Average temperature:   Maximum tempertaure record

1900       14.5 degrees C                      58 degrees, Death valley, USA

2000       16 degrees C                         70.7 degrees, Lut desert, Iran (Satellite measurement, so not accurate)

2050       18 degrees C                         Might reach 80 degrees    

2100        21 degrees C                        Might reach 90 degrees.

Here is a table of sea level rise:

27 cm might seem small, but is huge. Sea level rising already made 7 million homeless and displaced. With just 700 cm of sea level rise, entire states (like Florida, USA) or even countries (Maldives, Bangladesh) could get submerged, leaving 300 million homeless. If all the ice on earth melts, sea level rises by 68 meters, submerging countries like New Zealand, Denmark and UK, leaving 2 billion homeless

PLAN: SOLUTION USING SOLAR ENERGY

Using solar energy is most efficient type of renewable environment friendly energy. 

Once brought, there is absolutely no cost to use it. It is renewable.

Problems: Not available during cloudy weather and at night.

Simple solution:- The energy harnessed can be stored in generators, of which 30-40% can be spent right away and the other 60-70% stored by night time or cloudy weather. The value depends on rainfall amount and latitude.

For example, a city like Cairo, which is at desert and near equator, only 55% can be stored for night, as it is rarely cloudy.

In a city like London, where in winter, only 15-20% can be used right away due to long nights of 16 hours and short days and cloudy weather.

C) What impact had colonization had on our planet?

As described above, colonization caused climate change.

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