101 are seasons is climate of pune changing jnana probodhini prashala
By Pranav, Anoop& Shivanand
What is climate change Greenhouse effect Introduction Causes of climate change Effects of climate change Recommendations Sources
The climate of a region is defined by the average temperature, humidity, wind direction and sunshine of the region. If all this changes considerably, we may say that ‘climate change’ has occurred. Throughout the earth’s history ,there have been changes in climate and that’s why evolution and adaptation has taken place. So we may say that the climate of the earth is ever changing
The earth receives energy from sun mostly in visible and UV spectrum. When this energy is gained by earth, she reradiates it back in form of IR radiation. This IR radiation is absorbed by GHGs (as they are IR active)and is liberated back in atmosphere. This cycle helps earth keep warm or else the average earth’s temperature would be 1celcius
Activitiesthat generate GHGs are called sources and those that remove them are called sinks. When the cycle of source-sinks is disturbed, climate change occurs. This is caused by either internal or external changes occurring regarding earth. Our focus is on external changes.
HUMAN NATURAL Agriculture Sun storms Deforestation Volcanic eruptions Pollution Heat waves Chill waves Current changes
CH4 is emitted on a large scale by cows and bulls which are ruminating animals. Every time, when they digest food CH4 is liberated. It is about 70-120 kg methane in a year !! Another 15-20% of the total CH4 emissions come from paddy fields that are flooded during sowing and maturing periods.
Nearly 90%of the paddy area is done in Asia. Large paddy plantations are existing inTamhini ghat and in the small towns near pune. A large volume of N2O emissions has been attributed to fertilizer application. But still, our farmers use 4 times more fertilizers than expected. Also, N2O is 200 times more stronger GHG than CO2.
62000 trees are cut in last 7 years in Pune (legally). The hills in Pune-ARAI tekdi, parvati, taljai are the only carbon sinks of Pune we should try to conserve them. Govn has allowed 40% construction on such hills. We think this should be opposed. 20% of global greenhouse gas emissions result from deforestation and degradation of forest.
Forests contain about 125 percent of the carbon found in the atmosphere. This carbon is stored in the form of wood and vegetation through "carbon sequestration". Deforestation will also disturb the ‘carbon cycle’ This will again boost carbon production and the cycle will go stronger and stronger along time.
Private As we all know, Pune has the maximum number of two wheelers in the world.(19 lakh) So our city’s maximum source of pollution is vehicles . On average, 0.62 lbsCO2/mile is released by a vehicle in pune. So about 120lakh pounds of co2 & 60000 RSPM is released every day by vehicles alone.
There are 10 power plants in or on the outskirts of Pune. On average,300lbs co2 is produced by those in a day. A study has shown that about 3030 kg rspm is released in air by small scale power plants in a day
According to a study, 1 degree Celsius rise in climate of Pune will do 3-7% loss on potatoes, soybean, mustard and WHEAT!! By 2050, 20% loss on almost all crops is expected in Maharashtra. Good thing is that increase of co2 levels in Pune(550ppm) has brought 15% increase in rice and legumes.
Increased droughts and floods will affect availability of crops in future. Animal distress due to heat .Effects on reproduction and milk quantity have occurred. So loss of 1.5 million tons of milk is expected by 2020 in Maharashtra. Cases of extreme rain fall have doubled in Pune in 50 years. This has affected mango market in Pune.
Vector borne diseases have increased alarmingly in recent years as warmer climate is suitable for mosquitoes to survive and reproduce. 160 deaths were recorded in 10 yrs due to malaria in Pune.
Pune’s biomes having short lifespan of 50 yrs are still most vulnerable to projected climate change. Vetal tekdi has seen 10% loss in its forest cover since 2000. Good thing is increased CO2 levels have boosted forest productivity in Maharashtra by 15%
15-40% of species will face extinction in India with rise in 2 degree Celsius(50 years from now). As we will see next by the graphs done by ourselves, average temperatures will go increasing. So biomes will be disturbed greatly resulting loss of chances of survival of species.
As we can see the required rainfall for Pune to meet its needs is 1150.3mm. Average rainfall of Pune is 798.2 mm But this feat has never been achieved in last 50 years. So we must reconsider this issue seriously and improve forest cover.
Ifyou are idling your vehicle for more than 10sec, then you must turn the engine off as it gives more CO2 than starting the engine. About 80 vehicles were standing at S.P college chowk for 90 seconds(this is done by ourself). According to carbon footprint meter,idling vehicle for 1 min=1mile=0.80lbs carbon
ReccomendationsSo 96 pounds of carbon is released in just 1 chowkof Pune in just 1 minute.Imagine the number of such chowks in Pune andthe CO2 releasedin such chowks.And imagine the CO2 released in 1 day. WE JUST TURN OFF CAR ATSIGNALS, WE MAKE ADIFFERENCE!!!!