Research Journal of Environmental and Earth Sciences 4(11): 996-1001, 2012 ISSN: 2041-0492 © Maxwell Scientific Organization, 2012 Submitted: September 17, 2012 Accepted: October 03, 2012 Published: November 20, 2012 Role of Pakistan in Global Climate Change through Greenhouse Gas Emissions (GHGs) 1 Wajeeha Malik, 1Hajra Shahid, 2Rabeea Zafar, 3Zaheer Uddin , 4Zafar Wazir, 5Zubair Anwar, 5 Jabar Zaman Khan Khattak and 6Syed Shahid Ali 1 Department of Earth and Environmental Science, Bahria University, Islamabad, 2 Higher Education Commission, H-8 Islamabad, 3 PCSIR Complex, Quetta, Pakistan 4 Department of Physics, 5 Department of Bioinformatics and Biotechnology, 6 HEC, International Islamic University, Islamabad, Pakistan Abstract: The increasing concentration of Greenhouse Gases (GHGs) is warming the earth’s atmosphere and the phenomenon is known as Climate Change or Global Warming. The major factors contributing to the global climate change include polluted emissions by excessive burning of fossil fuels and deforestation. Pakistan contributes very little to the overall Greenhouse Gas (GHG) emissions however it remains severely impacted by the negative effects of climate change. Pakistan, in particular is estimated to have raised carbon emissions from 76 million tons in 1990 to 200 million tons in 2006. It is estimated that CO2 emissions with an average increase of 6.5% annually will grow to 482 million tons by 2020. The transport sector is a significant contributor to GHG emissions with an estimated 15million tons in 1990. With a proportionate increase in GHG emissions with the 100% increase in motor vehicles, the sector will be responsible for the emission of 30 million ton CO2 by 2020. According to data reviewed, the total petroleum consumption of Pakistan was 383 thousand barrels per day in 2008. Natural gas consumption was 1,088 billion cubic feet in 2007. Coal consumption reached 8.583 million short tons in 2007. In 2006, the total Carbon dioxide emissions from consumption of fossil fuels reached 125.59 million metric tons (EIA). Glacier melt in the Himalayas is projected to increase flooding and will affect water resources within the next two to three decades. Freshwater availability is also projected to decrease which will lead to biodiversity loss. Besides that, coastal areas bordering the Arabian Sea in the south of Pakistan will be at greatest risk due to inland intrusion and increased flooding from the sea. Being a predominantly agriculture economy, climate change is estimated to decrease crop yields in Pakistan. The endemic morbidity and mortality due to diseases primarily associated with floods and droughts are expected to rise. The impact of climate change will also aggravate the existing social inequalities of resource use and intensify social factors leading to instability, conflicts, displacement of people and changes in migration patterns. Keywords: Fossil fuel, gaseous emissions, global climate change, Greenhouse gases (GHGs), rising temperature burning of fossil fuels in automobiles and industries, destruction of forests for urbanization, usage of chemical sprays and development of new technology. It is tempting to subscribe to popular rhetoric that Northern depredations, as manifested by its untrammeled emissions, will irrevocably harm Pakistan. Pakistan contributes very little to the overall Greenhouse Gas (GHG) emissions however it remains severely impacted by the negative effects of climate change. The objective of this study is to investigate the major impacts of climate change on Pakistan (Ledley et al., 1999). INTRODUCTION Planet Earth, a combination of plains, heavy thick forests and lush green valley’s canopied by crystal blue sky is carelessly being polluted and degraded by human activities. The increasing concentration of Greenhouse Gases (GHGs) is warming the earth’s atmosphere and the phenomenon is known as Climate Change or Global Warming (Ledley et al., 1999). It is among the most pervasive threats to the web of life. It impacts the dynamics, functioning and structure of ecosystems, reduces their productivity, has negative impacts on the species, their habitats and also adversely effects water availability, food security, human health and well being. The major factors contributing to the global climate change include polluted emissions by excessive Energy demands and emission forecasts: Pakistan, in particular is estimated to have raised carbon emissions from 76 million tons in 1990 to 200 million tons in Corresponding Author: Syed Shahid Ali, HEC, International Islamic University, Islamabad, Pakistan 996 Res. J. Environ. Earth Sci., 4(11): 996-1001, 2012 2006 (IPCC, 2001). It is estimated that CO2 emissions with an average increase of 6.5% annually will grow to 482 million tons by 2020 (Ledley et al., 1999). The transport sector is a significant contributor to GHG emissions with an estimated 15 million tons in 1990s and It has been estimated that with a proportionate 100% increase in GHG emissions with the 100% increase in motor vehicles, the sector will be responsible for the emission of 30 million ton CO2 by 2020 (IPCC, 2001). According to data reviewed, the total petroleum consumption of Pakistan was 383 thousand barrels per day in 2008. Natural gas consumption was 1,088 billion cubic feet in 2007. Coal consumption reached 8.583 million short tons in 2007. In 2006, the total Carbon dioxide emissions from consumption of fossil fuels reached 125.59 million metric tons (Haque et al., 2008). Causes of climate change: There are natural as well as anthropogenic factors contributing to the climate change. The natural factors include plate tectonics, solar outputs, orbital variations, volcanism and ocean variability (Ledley et al., 1999; IPCC, 2001). However, the human influences are more drastic and dramatic. They are listed as follows: Increase in CO2 levels due to emissions from fossil fuel combustion Aerosols (particulate matter in the atmosphere) emissions from various sources Cement manufacturing processes and land use Ozone depletion Animal agriculture Deforestation Impacts of climate change on Pakistan: The impacts on Pakistan are drastic then as compared to the role it plays in causing the climate change. Firstly, glacier melt in the Himalayas is projected to increase flooding and will affect water resources within the next two to three decades. Freshwater availability is also projected to decrease which will lead to biodiversity loss. Beside that, coastal areas bordering the Arabian Sea in the south of Pakistan will be at greatest risk due to inland intrusion and increased flooding from the sea. Being a predominantly agriculture economy, climate change is estimated to decrease crop yields in Pakistan (IPCC, 2001; UNDP and ENERCON, 1990). The endemic morbidity and mortality due to diseases primarily associated with floods and droughts are expected to rise. The impact of climate change has also aggravated the existing social inequalities of resource use and intensifies social factors leading to instability, conflicts, displacement of people and changes in migration patterns. Some of the critical impacts are discussed as below: Displacement of communities: Land erosion and soil degradation caused by deforestation has displaced many rural communities in the Northern Areas of Pakistan and adjoining countries (UNDP and ENERCON, 1990). Land use change due to non-availability of land for housing and agriculture to support life are further causing huge impact on the displacement of communities. Furthermore, more frequent and torrential rains are a possible outcome of climate change that results in loss of land through erosion and landslides. Disruption of communications and energy loss: Landslides in the Northern Areas, Azad Kashmir and the Murree Hill tracts frequently disrupt communications. In addition, landslides and erosion continue to result in siltation of reservoirs and hence, reduces hydropower generation capacity. The shortfall of energy generation continues to widen and has been estimated to further create a wide gap in the demand and supply of hydropower (Haque et al., 2008). Loss of agricultural land: The loss of forest cover in the river rain areas has created flooding problems and, through soil erosion, reduced agricultural potential. Growing demand for fuel wood and continuing land use changes, thanks to population increase, will make the river rain areas even more vulnerable to the increased frequency of flooding (UNDP and ENERCON, 1990; Ehleringer et al., 1991) Damage to coastal infrastructure and marine habitat: The clearing of mangroves in the coastal areas has resulted in sea encroachment and in loss of habitat for many marine species which are source of livelihood for coastal communities. If unchecked, the loss of this natural barrier could expose coastal infrastructure to the increased frequency of storm flooding. Sea level rise could further damage marine habitats (UNDP and ENERCON, 1990; Ehleringer et al., 1991). Health effects due to natural calamities: Climate change due to anthropogenic activities and GHG emissions has played havoc with health and environment especially in developing countries, in addition to natural calamities through droughts, floods and rains (McMichael et al., 2006). Various climatic 997 Res. J. J Environ. Earrth Sci., 4(11): 996-1001, 20112 factors inffluence shiftin ng in rain patttern, agricultuural cropping tiime, monthly temperature t chhange, shifting of seasons eiither earlier orr later and seeasonal monsooon rain patterrn in Southeasst Asia. It hass resulted in the t emergencee and reemergeence of infectioous diseases, i..e., malaria, deengue, viral inffections etc. (P Patz et al., 1996). Beside thaat multiple hum man, biologicaal and ecologiccal health andd environmentaal issues erupt more often thhan developed world. Youn nger and infannt population is more vulnnerable to infeectious seasonnal diseases thhan adult popuulation, howeveer, malnutrition, lack of acceess to healthcaare system aggravates the situuation to becom me epidemic. Therefore, an n inter-disciplinnary cooperatiion among scientists with an n approach thrrough combiniing social, phyysical and eco ological perspeective is needeed. Situation further fu necessittates monitorinng geographicaally segregatedd and depriveed marginal populations p a and taking meaasures to mitig gate their basiic needs throuugh infrastructuure developm ment and heallth security (Paatz et al., 19966). FECTS OF CL LIMATE CHA ANGE ON EFF PLA ANNING AND D MANGING G WATER RE ESERVIORS IN THE POT TOHAR REGION OF PAKISTA AN Sixty-seven percen nt of world’’s glaciers are a retreating at a a startling raate in the Him malayas and the t major causal factor has been iddentified as climate c changee (Ageta and Kadota, 1992)). Glacial mellt will affect freshwater f flow ws with dramattic adverse effeects on biodiveersity and liveelihood, with possible longg-term implicaations on regioonal food secuurity. Accordinng to a 1999 reeport of Internnational Comm mission for Snoow and Ice, “G Glaciers in Him malayas are recceding faster thhan in any othher part of the world. The obbjective of thiss study was too assess the affects a of clim mate change on o the availabble water resoources in the Potohar Regiion of Pakistaan and to asseess the climatee change variability impactss on the micrro managemennt of surface water sourcess being used by b Water andd Sanitation Agency A Rawalppindi (WASA)--Pakistan (Haqque et al., 20088). Acccording to thee recent studyy carried out by b the met department, d thhere has been a considderable temperature variationn all over the country c especiaally in the Noorthern Punjab and Potohar region as shoown in Fig. 1.. It has beenn resulting in creating favvorable conditions for the exttreme weatherr patterns throuughout the woorld (Esterlingg, 1996) and in Pakistan (H Haque et al., 2008), 2 as well. There is an appreciaable variation in the precipitation pattern has occurred throughout Pakistan (Fig. 2) 2 and has advversely impacted the Potoharr region of Paakistan (Fig. 3)), which is solely dependds on rain wateer for agriculttural and drinking d purpooses (Haque et al., 2008). Fig. 1: Annuual mean temperrature change in Pakistan; Pakisttan Metrologicall department, Isllamabad 998 Res. J. J Environ. Earrth Sci., 4(11): 996-1001, 20112 Fig. 2: Channge in precipitatiion variation in Pakistan P (%); Paakistan Metrologgical departmentt, Islamabad Water depthh 1960 Water depthh 2005 2500 Depth in ft 2000 1500 1000 500 r Mu lpu hok e Al bu Ba te l ie t ow iD nN nN o1 Sat Sa tte l ie t ow lM wa Ga L Location of tube weell Fig. 4: G Groundwater deepletion in Rawaalpindi area; Waater and S Sanitation Agenncy (WASA), Raawalpindi-Pakistan effects (Reilly et al., 1999; FAO, 2005). Both macro and miicro management of water sources s is becoming difficullt both qualitattively and quanntitatively withh high cost. Pakistan's vulneerability to thee impacts of climate c changee guides its ovverall national response in dealing d with the issue. 999 and i agh Lia qat B The decline in precipitation has triggerred nd water, thuss depletion. Ovver extraction of undergroun the period of time, consiiderable grounndwater depletiion hich is primarrily due to leess has been observed wh recharge. Approximatelly 7-10ft/yearr ground waater a depletion has been observed (Fig. 4)) (Haque et al., gravated to a level l that capiital 2008). Situuation has agg territory of o Islamabad is becomingg dependent on undergrounnd water sou urce instead of rain waater collected inn adjacent reseervoirs. High levels of baccterial contam mination in booth surface andd ground waterr, increased turrbidity, increassed flooding annd effects on glaciers g are som me of the majjor o2 0 Fig. 3: Channge in precipitattion pattern in Isslamabad and Murrree; Pakistan Metrological department, Islam mabad Res. J. Environ. Earth Sci., 4(11): 996-1001, 2012 APPROACHES TO CLIMATE CHANGE ADAPTATION Legal and institutional elements- decision making, institutional mechanisms, legislation, implementing human right norms, tenure and ownership, regulatory tools, legal principals, governance, resource allocation. Policy and planning elements-risk assessment and monitoring, analysis, strategy formulation, sectoral measures. Livelihood elements- food security, hunger, poverty, non-discriminatory access. Cropping, livestock, forestry, fisheries and integrated farming system elements- food crops, cash crops, growing season, crop suitability, livestock fodder, water management, land use planning, soil fertility, soil organisms. Ecosystem elements- species composition, biodiversity, resilience, ecosystem goods and services. Linking climate change adaptation processes and technologies for promoting carbon sequestration, substitution of fossil fuels, promoting use of bio energy. Two main types of adaptation are autonomous and planned adaptation: Autonomous adaptation is the reaction of, for example, a farmer to changing precipitation patterns, in the changes crops or uses different harvest and planting/sowing dates (FAO, 2005). Planned adaptation measures are the conscious policy options or response strategies, often multisectoral in nature, aimed at altering the adaptive capacity of the agriculture system or facilitating specific adaptations. For example, deliberate crops selection and distribution strategies across different agriclimatic zones, substitution of new crops for old ones and resource substitution induced by scarcity (FAO, 2005). Long term adaptations are major structural changes to overcome adversity such as changes in land use to maximize yield under new conditions; application of new technologies; new land management techniques; and water use efficiency related techniques. Reilly et al. (1999) defined the following “major classes of adaptation” based on agriculture and its irrigation MITIGATION MEASURES system, i.e., seasonal changes and sowing dates of crops; different variety or species with new crop A variety of technologies for pollution controls are varieties; water supply and irrigation system; other readily available, classified as mechanical, electroinputs (fertilizer, tillage methods, grain drying and mechanical and chemical process equipment. The other field operations); forest fire management, emission measurements and education equipment promotion of agroforestry, adaptive management with include ammonium continuous emission monitors, suitable species and silvicultural practices (Reilly et al., portable multi-pollutant emission analyzers and 1999). It further included the types of responses controllers, NOx (Nitrogen Oxides) and VOC (Volatile required to: reducte food security risk; Identification of Organic Compounds) emission controls, Sulphur present vulnerabilities; adjustment of research dioxide & Mercury control technologies, carbon priorities; protection of genetic resources and intellectual property rights; Strengthening of capture and sequestration (process for removing agricultural extension and communication systems; carbon) equipment and recycling systems for waste and adjustments in commodity and trade policy; prioritizing water (Stern, 2007). education and training; promotion of micro- climatic benefits and environmental services of trees and forests CONCLUSION (FAO, 2005; Rosenzweig and Parry, 1994). Climatic change and variability are among the most Although Pakistan is not expected to be a major important challenges to developing countries because of player in global warming, however its energy based their strong economic reliance on natural resources and emissions are a major source of pollution and GHGs rain fed agriculture (Reilly et al., 1999; FAO, 2005; production. The main focus should be on the measures Rosenzweig and Parry, 1994). In Pakistan, people which can be taken to cope with the climate change. living in marginal areas such as dry lands or There should be increased excess to information Baluchistan face additional challenges with limited concerning this global issue. The technological management options to reduce impacts (Haque et al., responses should be improved along with energy 2008). In view of the above, a framework for climate efficiency practices by changes in lifestyles and change adaptation needs to be directed simultaneously businesses. Alternate energy sources, i.e., wind & solar, along several interrelated lines: should adopted along with developing an innovative 1000 Res. J. Environ. Earth Sci., 4(11): 996-1001, 2012 and environment friendly agriculture practices for biodiversity conservation (Stern, 2007; Metz, 2007). On the other hand, Pakistan is vulnerable to the consequences of climate change & our thoughts and awareness shape the world. Anger, fear, separation and greed are the thoughts that hold sway in our modern world, this is what allows us to exploit the natural world with no thought for the future, this is what allows us to oppress and exploit other people through our lifestyle. On the other hand thoughts of peace, love and unity with accepting responsibility to future generations are those that will lead us to a world that is environmentally sustainable, spiritually fulfilling and socially just. REFRENCES Ageta, Y. and T. Kadota, 1992. 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