 of 1°C in surface temperature is estimated to correspond 10% increase in incidence of insects as pests and insurgence of many diseases like cholera, typhoid etc.; spread of tropical and vector borne diseases like malaria, dengue etc. androdent borne diseases like plague. These diseases have shown a persistent increase in the past 50 years. Thus global climate changes have major implications on human health. It is obvious that effect on ecosystem will change the distribution and burden of vector borne infectious diseases including bacterial diseases. Changes in epidemiology may already be underway, complex biological changes are associated with change in ecosystem. Water and food borne pathogens create havoc in developing countries that too when conditions are conducive for spread of pathogens and compromise with the hygiene conditions. Green house gases play their role by increasing the carbon emission, due to which the disease curve is increasing faster. Carbon emission is increasing to a dangerous level, making animal lives vulnerable to pathogens and diseases. The increasing sea level rise has already submerged many islands and will soon leave millions of refugees for the world to provide shelter. The sea salinity ingress in the fresh water sources has made land barren and will soon be a threat to the food security. IMPACT OF HABITAT LOSS, OVERPOPULATION AND OVEREXPLOITATION Besides climatic change, other human activities are also largely responsible for biodiversity loss. It is estimated that about 27000 species become extinct every year. If this will continues, 30% of world's species may be extinct by the year 2050. The current extinction rate is 100 to 1000 times to that of natural rate of extinction. Other human activities are: habitat destruction, invasive species, pollution, population and overexploitation of natural resources (Kannan and James, 2009). Climate change will provide new ways for invasive species to encroach on new territory. Natural disasters like storm surges and high winds, which increase in number and severity as the earth warms, spread non-native plants and insects to new territories. Virtually all ecosystems worldwide have suffered invasion by the main taxonomic groups including India. The major invasive alien plant species include Lantana camara, Eupatorium odoratum, Eupatorium adenophorum, Parthenium hysterophorus, Ageratum conyzoides, Mikania micrantha, Prosopis juliflora and Cytisus scoparius. Rapidly increasing population has forced down the men to cut down the forests to fulfill the requirements of food and shelter. Defore
of 1 ° C in surface temperature is estimated to correspond 10% addition in incidence of insect as pests and insurgence of many disease like cholera, typhoid etc. ; spread of tropical and vector borne disease like malaria, dengue etc. androdent borne diseases like plague. These disease have shown a persistent increase in the past 50 old age. Thus global climate change have major implications on human health. It is obvious that effect on ecosystem will change the distribution and burden of vector borne infectious disease including bacterial diseases. Changes in epidemiology may already be afoot, complex biological changes are associated with change in ecosystem. Water and food borne pathogens make havoc in developing countries that too when conditions are conducive for spread of pathogen and compromise with the hygiene conditions. Green house gases play their role by increasing the carbon discharge, due to which the disease curve is increasing faster. Carbon emission is increasing to a dangerous level, making animal lives vulnerable to pathogen and disease. The increasing sea level upgrade has already submerged many islands and will soon leave million of refugees for the world to provide shelter. The ocean salinity ingress in the fresh water sources has made land barren and will soon be a threat to the food security. IMPACT OF HABITAT LOSS, OVERPOPULATION AND OVEREXPLOITATION Besides climatic change, early human activities are besides largely responsible for biodiversity loss. It is estimated that about 27000 species become extinct every year. If this will continue, 30% of world's species may be extinct by the year 2050. The current extinction pace is 100 to 1000 times to that of lifelike rate of extinction. Other human activities are: habitat destruction, invasive coinage, pollution, population and overexploitation of natural resources (Kannan and James, 2009). Climate change will provide fresh ways for incursive species to impinge on new territory. Natural disaster like storm rush and high wind, which increase in number and severity as the earth warms, spread non - native plants and insects to fresh territories. Virtually all ecosystem worldwide have suffered invasion by the main taxonomic groups including India. The major invasive alien plant species include Lantana camara, Eupatorium odoratum, Eupatorium adenophorum, Parthenium hysterophorus, Ageratum conyzoides, Mikania micrantha, Prosopis juliflora and Cytisus scoparius. quickly increasing population has forced down the men to cut down the forests to fulfill the requirements of food and shelter. Defore
 of 1°C in surface temperaturt is estimated to corres'ond 10% ihcrease kn incidence of insects as pxsts and unsurgence of many disdases likv cholera, typioid etc.; spread of tropigcl ans veccoc borne diseasex like maldria, dengue etw. xnbrodent borne diseases like plague. Trese dixewses have showg a kerfistsnt increase in the past 50 years. Thhs globel climate chanbes have major implicationd on human health. It id obvious tyat qdfect on ecorystem will change the distribution and burden of vecgor bprne infecjnius giseases inrludind bacterial diseases. Changex in epidemiolpgy mat already be underway, complex biologicaj changes axe associated with chqnte in ecovystdn. Wxted end food horie pathogena create hacoc in developing cpugnties that tok when cjnditions are conducive for spread of pdthkgens and compromise wirh the hygiene conditlons. Greeg house gases play their role by increasing the cdrbon dmiwslon, aye to which the disease curve is increasing fasesr. Csrbon emission is increasonh yj a dangerous level, maiing animal lives gulnerafle ti pathogegs amd diseases. The increasing wea level rifw has already submzrged many irlancs anc will soon leave milliuns kf refugees for the surld to provide rhektar. The stx salinity ingresf in the hresh water rourves haf made lanf barvan and will soon bf a tkreat to the fold security. IMPACT OF HABITAT LOSS, OVERPOPULAJIOT ATD OVERERPLOITSTION Besides climatic chanye, other humav activitivs are alvo largely wesponsible fmt biodiversitb loss. It is wstinated tfxt about 27000 specoes becomv txtinct evwry year. If this wlll cuhtinues, 30% of worod's species may be exginst bb the fear 2050. The cusreng ebyinctkon ratt iw 100 to 1000 times to that of ndturzl rate of extinctook. Other homan actidities are: hanitat destruction, lnvasmve spxcies, loljution, population and overexplkitation lf katural resouwces (Kannan and Lames, 2009). Climate change will provide new weys for invasive specigs to encroach on new uerritory. Natnral dysasters nike storm surges ane high winds, whicm increase in number ahd sevarity as the earth warms, spread non-native plants and insects to new territoriew. Virtnajly all ecoaystrms wmrjbwide hwve dnffered invasion ny the main taxonomic groups inrluding Ingic. The major invasive alien plsng species incuude Lantana camara, Eupaforium ocoratum, Eupatorium adenophorum, Larthenium hysterophorus, Ageratun congzoides, Miyania micrantha, Prpsopis julidlora abd Cntisus scoparijs. Taiidly incrfasiig 'opulation has forced down the meb to cyt down the forestv to fulfilp the tequiremgnts of food and ahelffr. Dewore
of 1°C in surface temperature is estimated 10% in incidence insects as pests like typhoid etc.; spread tropical and vector diseases like malaria, dengue etc. androdent diseases like plague. These diseases have shown a persistent increase in the past years. Thus global climate changes have major implications on human health. It is that on will the distribution and burden of vector borne infectious diseases including bacterial diseases. Changes in epidemiology may be underway, complex biological changes are associated with in ecosystem. Water and borne pathogens create havoc in countries too when are for of pathogens and with the hygiene conditions. Green house gases play their role by increasing the carbon emission, due to the disease increasing faster. emission increasing a dangerous level, lives vulnerable to pathogens and diseases. level rise has already submerged many islands and soon leave of refugees for the world to shelter. The sea salinity ingress in the fresh sources has made land barren and will soon be a threat to the food security. HABITAT LOSS, OVERPOPULATION AND Besides climatic change, human are largely for biodiversity It is estimated that about 27000 species become extinct every year. this will continues, 30% of world's species may be extinct year The current extinction is 100 to 1000 to of natural rate of human are: species, population overexploitation of natural resources and James, 2009). Climate change provide new ways for new territory. Natural disasters like storm surges and winds, which increase in number and severity the earth warms, spread non-native plants and insects to new territories. Virtually ecosystems worldwide invasion by the main taxonomic groups including India. major invasive alien plant include Lantana camara, Eupatorium odoratum, Eupatorium adenophorum, Parthenium hysterophorus, conyzoides, micrantha, Prosopis and Cytisus scoparius. increasing population has down the men down the to the and shelter. Defore
 of 1°C in surface temperature is Estimated tO corrEspOnd 10% InCreaSe in Incidence of insECts aS pests and insurgence of mAny diSeASes lIKe CholeRa, typhoID eTC.; SprEaD oF trOpICaL and vEctOr borne Diseases liKe mAlAria, dengue etC. AnDrodent borNe dIseases like pLagUe. ThesE dIseASes haVe sHown a PersisTEnt incRease in thE pASt 50 yearS. thus gloBAL cLimaTe changes have majoR ImPLications on humAn healTh. iT iS OBviOus That effect On EcosySTem will CHaNGE The DIstribution anD burden of veCTor Borne iNfEctIOus disEases InCLudIng bacteriaL disEases. ChanGes in ePIdemiolOGy may alReady bE unDerWay, cOMpLeX biOlOGicAL cHanGEs aRe associAtEd With cHangE IN ECosySteM. WatEr and Food borne pathOgeNs crEAte Havoc In devElopInG counTries tHat toO wHen conditions arE conDucive for SprEaD of PaThogeNS and coMprOmiSe with tHe hygieNE coNdITIOnS. Green house gases plAy THEiR role by iNcreasINg ThE Carbon emIsSioN, due TO Which The dISeAse curve Is incrEAsInG faster. caRbon emIsSioN is IncreASing To a danGerous leVel, maKIng animal lives VUlnerable to paTHoGENs ANd diSeaSes. The increAsinG Sea lEvel RIsE haS AlreaDy subMeRGeD Many islands and will sOoN leave MilliOns of refugees For the worlD TO Provide sHeltER. THE sea salinity inGress In the fresh WAter sourCes haS made lanD barren anD WIll soon bE a tHreAt tO thE FOoD security. IMPAct oF HAbItAT LOSS, oVErPOPULAtIOn ANd OVeRExPlOITATION besides cLiMaTiC cHanGe, othER human acTiVitIeS arE also LArgely RespoNsibLe FoR BioDiversiTY lOSS. It iS eStImatEd tHaT abouT 27000 speCIes Become eXtinct eveRy yEAr. If ThIs Will conTinues, 30% of world'S sPecies may bE eXtiNct by tHE Year 2050. The cUrrent extinction rate is 100 tO 1000 Times to ThaT of naTuraL rate of exTinCtion. OTheR Human aCtivitIes arE: hAbiTAT destRUCtIon, InVasive specIES, poLlutiOn, PopuLation aNd overexploitation OF naTural resourceS (KaNnan AND JAmeS, 2009). clIMatE cHAngE WIll provide new waYs for invasIvE SpEcies to encROacH oN new terRitory. NAturaL DisasteRs like stoRm surges aNd High WINds, Which increAse in numBer and sevERity aS ThE eartH waRms, sprEaD noN-natiVe planTS anD inseCts to nEw TerritOries. viRtually aLl ecosystems worldwide haVe suffEred iNvaSion by the MaiN TaxOnomic groUps iNcluding InDia. the Major InvASive aLien PLaNt sPEcies InclUDe Lantana CAmAra, eUPaTorium odoraTUM, eupAtoriUm aDEnophoRum, PArthenium hysteropHOrus, Ageratum coNyzoIDEs, MIkaNIa miCrAntha, Prosopis jUliFlORA and CytiSuS scoparius. RApidly inCrEAsing PopulaTion haS forced DOWn THe men tO cut DowN the foresTs tO fULfill thE rEqUIremenTs of FoOd and sHelter. dEforE
 of 1°C in surface tempera ture is es timat edtoco rres pond  10% increasei n in cidence of insects aspests  a n d in s ur gence  of man y  d i s eas es  l ike  c h ol era,typ hoid et c.; spread  of  t ropical andv ec tor bornedis eases like m ala ria, d en gue etc.and roden t born e  disea ses likepl a gue. T h ese dis e a se s ha ve shown a persis t en t  increase in t he pas t5 0y e ars . T hus global  c limat e  change s  h a v e  ma j or implicatio ns on human hea lth. I tiso bvious  that  e f fec t on ecosys temwill chan ge the distrib u tion an d burd enofvect o rbo rne  i n fec t io usd ise ases inc lu di ng ba cter i a l dise ase s. C hange s in epidemio log y ma y  al ready  be u nder wa y, co mplexbiolo gi cal changes are  ass ociated w ith  c han ge  in e c osyste m.Wat er andfood bo r nepa t h o ge ns create havoc in  d e v el oping co untrie s  t ha t  too whe ncon diti o n s are  con d uc ive forspread of  p athogen sand co mp rom ise  with thehygien e condit ions. Green house ga s es play their ro l e  b y  inc rea sing the ca rbon emis sion ,  d uet o whi ch th ed is e ase curve is increa si ng fas ter.Carbon emissi on is incr e a s ing to a  dan g er o us level, maki ng an imal lives vulnerab le to  pathoge ns and di s e ases. Th e i ncr eas ing s ea  level rise h a s  alr ea dy subm erg ed many  is lan dsand  w ill soonleave mi ll io ns  o f r efuge e s for th ewor ld  to  prov i de she lter.  The  s ea sal inity i n gr e s s in  t he  fre shwa ter s ourc e s h as made  land bar ren andwi ll  soon b e a threat to  t he food se cu rit y. IMP A C T OF HAB ITAT LOSS, OVERPOPULATI O N AND O VER EXPLO ITAT ION Besid esclimat icc hange,  other  huma nact i v ities a re  al so  largely r e s pon sible  f or b iodiver sity loss. It is e s tim ated that abo ut2700 0 sp eci e sb eco me ext i n ct every year.If this wi ll co ntinues, 3 0 % o fworld's  specie s may be exti nct by th e year 20 50 . Th e cur rent extin ction ra te is 100 to 10 0 0times  to  thatof  na tural  rateo f e xtinc tion.Ot her hu man a ct ivitiesare: habitat destructio n, inv asive  sp ecies, po llu t ion , populat ionand overex plo ita tionofn atura l re s ou rce s  (Kan nana nd James, 20 09) . Cl imate chang e w ill  prov ide new wa ys f or invasive speci e s to encroachon n e w  te rri t ory.  N atural disaste rsli k e  storm s ur ges and hig h winds,  w h ich i ncreas e in n umber a n d  s e verity  asthe  earth wa rms ,s pread n on -n a tive p lant sand in sectst o ne w territories. Vir tuall y all e c osy stems  w orldwid e  hav e suffered  invasion b y themain  taxo nomic g ro ups in clu di ng India.T he majorinvas ive ali en  pla ntspecie s in c l ude L anta na  ca mara, Eup a t or i um  o d ora tum,  Eupa to rium  adenopho r um, Part hen i um hyst er oph o r us, Ag e ra t u m conyzoid es,  Mika n i a micranth a , Pr o so p is ju liflor a andCytisus sco pa rius. R api d l y increas ing popul a tio nhasforced d ow n th emen  t o cut down theforeststo fulfi l l  the r equ i reme n ts offo od and shelt er. D ef o re
 of_1°C in_surface temperature is estimated_to correspond_10%_increase in_incidence_of insects as_pests and insurgence_of many diseases like_cholera, typhoid etc.;_spread_of tropical and vector borne diseases like malaria, dengue etc. androdent borne diseases like_plague._These diseases_have_shown_a persistent increase in the_past 50 years. Thus global_climate changes_have major implications on human health. It is_obvious_that effect on_ecosystem will change the distribution and burden of vector_borne infectious diseases including bacterial diseases._Changes in epidemiology_may_already_be underway, complex biological_changes are associated with change in_ecosystem. Water and food borne pathogens_create havoc in developing countries that too_when conditions are conducive for spread_of pathogens and compromise with_the hygiene_conditions. Green house gases play_their role by_increasing the_carbon emission, due_to which the disease curve is_increasing faster. Carbon_emission is increasing to a dangerous_level,_making animal lives_vulnerable_to_pathogens and_diseases. The increasing_sea_level rise_has_already submerged many islands and will_soon_leave millions of refugees for the world_to provide shelter. The_sea_salinity ingress in the_fresh water sources has made_land barren and will soon be_a threat_to the_food security. IMPACT OF HABITAT LOSS, OVERPOPULATION AND OVEREXPLOITATION Besides climatic_change, other human activities are also_largely responsible for biodiversity_loss. It_is_estimated that about_27000_species become_extinct every year. If this will continues,_30% of_world's species may be extinct by_the year 2050. The_current_extinction rate is 100 to 1000_times to that of natural rate_of extinction. Other human activities_are:_habitat_destruction, invasive species, pollution, population_and overexploitation of natural resources (Kannan_and James, 2009)._Climate change will provide new ways for_invasive_species to encroach on new territory._Natural_disasters like storm surges and high_winds,_which_increase in number and severity_as the earth warms, spread non-native_plants and insects to new territories. Virtually all ecosystems_worldwide have suffered_invasion by the main taxonomic_groups_including_India. The major invasive alien plant species include Lantana camara,_Eupatorium odoratum,_Eupatorium adenophorum, Parthenium_hysterophorus, Ageratum conyzoides, Mikania micrantha, Prosopis juliflora and Cytisus scoparius._Rapidly increasing population has forced down the_men to cut down the forests to fulfill the requirements of_food and shelter. Defore