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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 Climate Relevant Land Use and Land Cover Change Policies Rezaul Mahmood* Department of Geography and Geology and Kentucky Climate Center Western Kentucky University 1906 College Heights Boulevard Bowling Green, KY 42104 Contact: e-mail:[email protected] Phone: 270-745-5979 Fax: 270-745-6410 Roger A. Pielke Sr. Department of Atmospheric and Oceanic Sciences Cooperative Institute for Research in Environmental Sciences University of Colorado Boulder, CO 80309 USA Thomas R. Loveland U.S. Geological Survey Earth Resources Observation and Science (EROS) Center Sioux Falls, SD 57198-0001 Clive A. McAlpine School of Geography, Planning, and Environmental Management The University of Queensland Brisbane 4072 Australia *Corresponding author 1 43 Abstract: Both observational and modeling studies clearly demonstrate that land use and 44 land cover change (LULCC) play an important biogeophysical and biogeochemical role 45 in the climate system from the landscape to regional and even continental scales. Without 46 comprehensively considering these impacts, an adequate response to the threats posed by 47 human intervention into the climate system will not be adequate. 48 Public policy plays an important role in shaping local to national-scale land use 49 practices. An array of national policies has been developed to influence the nature and 50 spatial extent of LULCC. Observational evidence suggest that these policies, in addition 51 to international trade treaties and protocols, have direct effects on LULCC and thus the 52 climate system. 53 However, these policies, agreements and protocols fail to adequately recognize 54 these impacts. To make these more effective and thus to minimize climatic impacts, we 55 propose several recommendations: 1) translation of international treaties and protocols 56 into national policies and actions to ensure positive climate outcomes; 2) updating 57 international protocols to reflect advancement in Climate-LULCC science; 3) continued 58 investment in the measurements, data bases, reporting, and verification activities 59 associated with LULCC, and LULCC relevant climate monitoring; and 4) reshaping 60 Reducing Emissions from Deforestation and Forest Degradation+ (REDD+) to fully 61 account for the multi-scale biogeophysical and biogeochemical impacts of LULCC on the 62 climate system. 63 2 64 Observational and modeling studies clearly demonstrate that land use and land 65 cover change (LULCC) (e.g., Fig. 1) plays an important biogeophysical and 66 biogeochemical role in the climate system from the landscape to regional and even 67 continental scales (Foley et al. 2005; Pielke et al. 2011; Brovkin et al. 2013; Luyssaert et 68 al. 2014; Mahmood et al. 2014). The biogeochemical effect on the carbon budget is well 69 recognized in the both scientific and policy making community. The Biogeophysical 70 effect on the water cycle and surface energy fluxes, and thus on the human role in 71 affecting the climate system is also well documented by the scientific community. 72 Although the CO2 linked biogeochemical effects have some spatial heterogeneity, it is 73 much less compared to LULCC driven biogeophysical impacts and, overall, 74 biogeochemical impacts on climate are more homogeneously distributed. 75 Hence, we suggest that the biogeophysical effects need to be better communicated 76 among policy makers. In this vein progress has been made through Land-Use and 77 Climate, Identification of Robust Impacts (LUCID) modeling activities (de Noblet- 78 Ducoudré et al. 2012) and the Coupled Model Intercomparison Project 5 (CMIP5) 79 (Brovkin et al. 2013) and planned to be included in the Coupled Model Intercomparison 80 Project 6 (CMIP6) (Meehl et al. 2014). Without adequately considering the 81 biogeophysical impacts of LULCC on climate, an adequate response to the threats posed 82 by human intervention into the climate system will not be sufficiently addressed 83 (Lubowski et al. 2008). 84 85 Public policy plays an important role in shaping local to national-scale land use conversions and management practices (Miles and Kapos, 2008; Pannell, 2008). Global 3 86 demand for food, fiber and energy also affect national policies that drive regional 87 LULCC (Mattison and Norris, 2005) (Fig. 2-3). Specific examples include the global 88 demand in beef resulted in deforestation in Australia, Brazil, and Colombia (McAlpine et 89 al. 2009). Moreover, public policies affecting LULCC may have specific environmental 90 or economic goals, but significant climate system consequences can occur. 91 Observational evidence confirms that policy-driven LULCC impacts convection, 92 cloud cover, near surface atmospheric moisture content, precipitation, temperatures and 93 long-term temperature trends in many parts of world including the Amazonia, the 94 Northern Great Plains of U.S.A., India, and Southeast Asia (Marshall et al. 2004; Negri et 95 al. 2004; Mahmood et al. 2006; Bonfils and Lobell, 2007; Sen Roy et al. 2007, 2010; 96 Kumagai et al. 2013). In some areas, precipitation has declined more than 10% (Marshall 97 et al. 2013) and, depending on LULCC type and latitude, temperature changes were 98 several degrees of warmer (Negri et al. 2004) or cooler (Bonfils and Lobell, 2010). 99 Observational data suggests that, in some cases, impacts of these LULCC can be felt far 100 beyond the regions of changes (DeAngelis et al. 2010). Modeling research suggest that 101 LULCC would modify temperature extremes (Avilla et al. 2012). In some cases LULCC 102 did not even deliver economic benefits (Gullison et al. 2007). Moreover it is reported that 103 since 1990s 1.5 billion metric tons of carbon has been released annually to the 104 atmosphere due to deforestation which is about 20% of total anthropogenic carbon 105 emissions (Gullison et al. 2007). 106 107 An array of national LULCC policies, international trade, treaties, and protocols have direct effects on land use and land cover, with important biogeophysical and 4 108 biogeochemical impacts on the climate system. However, these policies, agreements and 109 protocols are diverse and failed to adequately recognize these impacts. Here, we 110 highlight the challenges associated with these diverse approaches and propose actions 111 that can help to mitigate their adverse climatic impacts. 112 113 Protocols and challenges 114 International protocols, such as the United Nations Framework Convention on 115 Climate Change (UNFCC) and United Nations Convention to Combat Desertification 116 (UNCCD) are well-known for directly addressing the human role in the modification of 117 the climate system. However, they only have an impact when the following actions 118 occur: (a) donors embrace the goals and developing countries and donors work 119 collaboratively to establish appropriate national capabilities and policies that are aligned 120 with the treaty, and (b) developed countries define objectives in their national policies 121 that align with the convention goals. Another challenge with these treaties and protocols 122 is that they are typically sector specific. For example, the UNFCC addresses emissions 123 reductions through focused efforts on forestry and agriculture. The UNCCD addresses 124 sustainable development in arid, semi-arid and dry sub-humid areas and includes climate- 125 specific objectives (Mattison and Norris, 2005; Cowie et al. 2007). 126 Although not specifically focused on climate, the Convention on Biodiversity 127 (CBD) has clear climate-connected land use implications due to strategic goals that 128 include a target to dramatically reduce the rate of loss of native ecosystems (Peter, 2004). 129 Plans by the 2012 United Nations Rio+20 Conference on Sustainable Development and 5 130 the CBD to restore at least 15% of degraded landscapes globally to enhance ecosystem 131 resilience and carbon stocks does not consider biogeophysical climate processes and 132 feedbacks. While these treaties collectively can improve Land Use, Land Use Change and 133 Forestry (LULUCF) practices, they will only have the desired positive effects if national 134 policies and programs are aligned with LULUCF objectives. Unfortunately, there is no 135 consistency at national levels to achieve this alignment. In the U.S., for example, farm, 136 energy, and conservation policies have clear land use implications, but the policies 137 themselves do not necessarily embrace climate. According to a recent survey only 35 of 138 50 states of the U.S. adopted a state-level climate mitigation plan. The approaches and 139 priorities are diverse with different LULCC and climate outcomes (Rittenhouse and 140 Rissman, 2004). Even small differences in the definition of forest by the Food and 141 Agricultural Organization (FAO) of the United Nations and a sovereign country can 142 result in large discrepancies in estimates forest extent and deforestation (Romijn et al. 143 2013) and subsequent policy response with climate consequence. 144 Despite the recognition of both the biogeophysical and biogeochemical climate 145 impacts of LULCC by the scientific community, a major weakness of international 146 protocols is that they do not directly address biogeophysical impacts. Most protocols only 147 focus on the reduction of carbon emissions (biogeochemical impacts) resulting from 148 LULCC and potential adaptation and mitigation strategies. On the other hand, planned 149 afforestation to increase carbon sequestration may inadvertently modify local and 150 regional climate by altering surface albedo, heat, moisture, momentum, and turbulent 151 fluxes. In other words, some of the protocols are geographic region, time- and spatial6 152 scale dependent. Hence, the current approach does not bring the climate impacts of 153 LULCC to the attention of policy makers and the general public in its entirety and makes 154 these protocols inefficient and ineffective in dealing with the biogeophysical and 155 biogeochemical impacts of climate. 156 157 158 Recommendations In short, these diverse national and international policies and the subsequent 159 shaping and or reshaping of land use and land cover complicates efforts to mitigate the 160 LULCC impacts on climate. Hence, several key steps need to be adopted which may help 161 reduce unintended impacts of LULCC on climate. They are as follows: 162 163 1) Translation of international treaties and protocols into national policies and actions 164 which deliver positive climate outcomes. 165 International policies are primarily focused on forests and their role in the carbon 166 cycle. National policies, whether government-based or market-driven, tend to focus on 167 the primary resource-based economic sectors (e.g., agriculture, forestry, grazing, energy). 168 Brazil’s soy moratorium is a voluntary market-based program to curtail soy expansion on 169 lands deforested since 2006 (Gibbs et al. 2015). The moratorium resulted in reduced 170 deforestation in the Brazilian Amazon. This is a clear case where agricultural land use 171 policy aligned with Reducing Emissions from Deforestation and forest Degradation+ 172 (REDD+) and UNFCCC objectives with mutually beneficial results. 173 The relationships between national and international policies are obviously 7 174 important. As with the approval of many other international treaties or protocols (e.g., 175 trade agreements), incentives that lead to both the reduction of negative impacts of 176 LULCC on climate and that include clear economic benefits should be identified as 177 priority actions at the national level. 178 An additional concern is the impact of changes in governing bodies on national 179 policies. Governing changes can shift policies for better or worse LULCC and climate 180 outcomes. For example, there is evidence that changes in majority parties in Brazil have 181 had weakening effects on deforestation control (Rodrigues-Filho et al. 2015). 182 International bodies should approach various nations through established 183 communication channels and encourage dialogue and initiatives to address this challenge 184 (recommendation #1). In response, national legislative bodies will need to recognize this 185 issue and propose and approve necessary laws that would allow nations to have cohesive 186 actions that are consistent with their priorities. This could be achieved by using existing 187 platforms of international treaty negotiations. Individual countries will need to develop 188 national policies to resolve this issue (Translation of international treaties and protocols 189 into national policies and actions) with consideration of their current socio-economic 190 environment. 191 Policy implementation and its impacts can be determined by periodic assessment 192 of the trajectory of the resulting LULCC, changes in the structure of the landscape and 193 their spatial scales (further details are provided in recommendation #3). It needs to be 194 recognized that the biogeophysical impacts vary from region to region, e.g., changes in 8 195 tropical forest cover will have different climate consequences compared to changes in 196 temperate or boreal forests. Hence, region specific rules and actions need to be adopted. 197 Developing countries may need additional help in the process of translation of 198 treaties and protocols. International bodies such as the U. N. and linked entities or 199 developed countries may offer help to overcome difficulties in devising workable and 200 effective policies and their implementation so that these mismatches are removed. 201 202 2) Updating international protocols to reflect advancement in Climate-LULCC science 203 for effective policies. 204 It is critical that international protocols stay current as new scientific knowledge 205 of climatic impacts of LULCC comes to light [for example, the increased recognition of 206 biogeophysical impacts of LULCC by the IPCC (Stocker et al. 2013)]. Increased 207 surveillance and monitoring from ground-based measurements and satellite observations 208 (further discussed below) can provide objective evidence of the connections between 209 LULCC and climate (e.g., localized warming and drying). More aggressive acquisitions 210 of high-resolution satellite imagery, for example, are resulting in more timely evidence of 211 the impacts of land change events on both human and natural systems (Roy et al. 2014). 212 State-of-the-art mesoscale models using more accurate representations of surface 213 conditions (e.g., land cover properties, topography) along with realistic scenarios can 214 help understand the outcomes of policy options (Lawrence and Vandecar, 2015). These 215 actual and scenario-based assessments need to be communicated and subsequently 216 translated into the national policies for effective mitigation and adaptation strategies. 9 217 Again, this can be achieved by continued collaboration among various international 218 bodies and national entities and by using established protocols and procedures. 219 220 3) Continued investment in the measurement, data base development, reporting, and 221 verification activities associated with LULCC, LULCC relevant climate monitoring, and 222 emissions reductions linked to land use practices. 223 In this era of limited government funding for new initiatives, we need to start with 224 leveraging current and largely successful approaches such as satellite observation of 225 LULCC. Specifically, for example, continuation of Landsat, Terra, Aqua, Sentinel, and 226 other similar satellite missions by various nations and space agency policies that allow 227 free access to Earth observation data are needed for international transparency for 228 monitoring LULCC (De Sy et al. 2012; Herold and Johns, 2007). These activities should 229 include data base development and easy access to quality assured data. Spaceborne 230 observation and monitoring platforms could be particularly useful for developing nations 231 where historical data may not be available (Herold et al. 2011). We recognize that 232 processing and analysis of the data still require resources and budgetary support. 233 However, the level of funding needed for these steps are much smaller in an already 234 constrained national budgets. As shown in Brazil’s approach to the reduction in 235 deforestation, monitoring transparency and appropriate policies can lead to significant 236 reductions in adverse LULCCs (Instituto Nacional de Pesquisas Especias, 2013). 237 In addition to utilizing data from existing in-situ and spaceborne climate 238 monitoring platforms, new in-situ monitoring networks need to be established in regions 10 239 where rapid LULCC is currently underway. This effort could be undertaken in selected 240 areas such as the Amazonia, Costa Rican cloud forests, Southeast Asian tropical forests, 241 and near rapidly growing urban and agricultural areas and then expanded to other regions. 242 This effort could consider collaborating with existing coordinated national and 243 international efforts [e. g., Fluxnet (Baldocchi et al. 2001)]. Mitigation of the diverse 244 range of effects on climate from LULCC can also begin with existing local policies and 245 practices of land management devised for conservation efforts. For example, in the U.S. 246 and China, there are certain government policies [e. g., Grain for Green Project (Fan et al. 247 2014)] that encourage farmers from selected regions to adopt conservation practices that 248 may also reduce biogeophysical and biogeochemical effects on climate. Wherever 249 needed, these policies could be further expanded so that specific emission reduction 250 policies can be adopted and implemented. It is also critical that the local-level 251 implementation requires simple and straightforward policies (Höhne et al. 2007). 252 253 4) Reducing deforestation and forest degradation in developing countries under REDD+ 254 is an important step. However, developed countries that are not covered under this 255 protocol, need to be included. 256 Again, existing international platforms can be used to initiate the discussions. 257 Negotiation of actual individual national level actions, to be adopted by developed 258 countries, can begin subsequently. A major requirement underpinning the 259 implementation of these protocols is an a priori assessment of the LULCCs that will 260 result from their implementation. This assessment should include: a) an analysis of the 11 261 extent, type and intensity of the resulting changes, b) what are the likely biogeophysical 262 and biogeochemical feedbacks on the climate system at different spatial scales, and c) 263 what are the risks and consequences for the regional environment and communities. This 264 assessment should follow similar rigor to that applied for greenhouse gas accounting. 265 Another important aspect of REDD+ implementation is that all relevant parties 266 need to be aware of potential and unintended danger of ‘recentralization’ of forest 267 governance (Phelps et al. 2010). This awareness is particularly critical for developing 268 nations because many of them have spent many decades overcoming the legacy of 269 centralized colonial and post-colonial governance in all aspects of national life. This 270 decentralization effort is still ongoing or is in the process of taking roots in governance 271 for many of these countries. Hence, REDD+ implementation should not interfere, disrupt, 272 or set examples that are counterproductive to decentralization efforts. 273 We suggest that these steps will make current national policies and international 274 protocols and conventions more effective. 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