1. Global warming
Global warmingisa processof continuousincrease inglobaltemperature leadingtoclimate change.Itis
a resultof excessive greenhouse effect.Watervapourandcarbon dioxide inthe airabsorbinfrared
radiationresultinginairgettingheatedupfurther.Due toglobal warming,productivecroplandsmay
become unfertile.Sealevelmayincrease floodingcoastal areas.Soil maygeteroded.Accordingtoa
study,the earth’stemperature mayrise by2.5o
C by 2050 and by 4.5o
C by 2100 if emissionlevelsof
greenhouse gasesare not checked.
How to reduce airpollution?Airpollutioncanbe reducedby,decreasingemissionsfromindustriesand
motor vehiclesusingcleantechnologiesandregularmaintenanceof engines.
usingfuelswhichemitlesspollutants.Forexamplekerosene,LiquidPetroleumGas(LPG) orlead-free
petrol.
usingpublictransportlike busesandtrains,andminimizingthe use of private vehicleslikecars,
motorcyclesetc.Car pool (twoor fourfriendsfromsame localitytravellingbyonlyone carto the place
of work) maybe a verygoodidea.
decreasingthe use of pesticidesandinsecticides.
usingrenewable sourcesof energysuchassolar energy,windenergyandbiogas.
avoidingburstingof crackers.
growingmore treeswhichact as screensor insulatorsagainstdustandotherparticlesandeven
absorbpollutantslike oxidesof sulphur.
strict enforcementof the anti-pollutionlaws.