Voluntary carbon offsets have become a key strategy of climate action efforts in the wake of worldwide anthropogenic climate change. The voluntary carbon market has grown rapidly as more institutions gain interest in contributing to decarbonization efforts to reach emissions reduction goals. The voluntary carbon offset market has introduced decarbonization solutions through various carbon removal, reduction, and avoidance projects that provide accessibility to climate solutions and credit affordability. However, the variability of projects and verification systems has led to some criticisms of the validity and accuracy of these solutions. This thesis assesses the current state of the voluntary carbon market policies and future opportunities and trajectories for this market.

Public and private lands depend on organizations to manage and protect them for the recreational enjoyment of humans and the conservation of biodiversity. Organizations that partner, or co-manage, to manage these lands can combine their resources to reach efficient conservation outcomes for biodiversity protection. How organizations express their priorities publicly through their mission statements are important because of their ability to reach stakeholders. In my thesis research, I collect the mission statements for 1144 organizations that are categorized into two groups of those that partner at least once and those that never partner. I analyze the extent to which they align and the drivers through performing text analysis by creating word clouds, word frequency lists, and identifying themes to categorize the words into for each group of partnering and non-partnering. Comparing partnering and non-partnering organization mission statements, I find that partnering organizations use more conservation-themed language and non-partnering organizations use community/people-themed language more frequently. I also find that the type of organization impacted the words being used, as well as the ratio of these different types of organizations that made up the total group of partnering and non-partnering (federal, local, and non-government organizations (NGO)). Future research could center around the dynamics of the partnerships and the extent to which mission statements play a role in attracting other organizations to partner and their role in clearly reflecting priorities to the public.

The City of Phoenix Street Transportation Department partnered with the Rob and Melani Walton Sustainability Solutions Service at Arizona State University (ASU) and researchers from various ASU schools to evaluate the effectiveness, performance, and community perception of the new pavement coating. The data collection and analysis occurred across multiple neighborhoods and at varying times across days and/or months over the course of one year (July 15, 2020–July 14, 2021), allowing the team to study the impacts of the surface treatment under various weather conditions.

This paper considers the changes in education and capacity building that are needed in response to environmental and social challenges of the 21st Century. We argue that such changes will require more than adjustments in current educational systems, research funding strategies, and interdisciplinary collaborations. Instead, it calls for a deeper questioning of the assumptions and beliefs that frame both problems and solutions. We first discuss the challenges of transforming education and capacity building within five key arenas: interdisciplinary research; university education systems; primary and secondary education systems; researchers from the developing world; and the public at large and politicians. Our starting point is that any type of revolution that is proposed in response to global change is likely to reflect the educational perspectives and paradigms of those calling for the revolution. We differentiate between a circular revolution (as in the "plan-do-check-act cycle" often used in change management) versus an axial revolution (moving to a different way of thinking about the issues), arguing that the latter is a more appropriate response to the complex transdisciplinary challenges posed by global environmental change. We present some potential tools to promote an axial revolution, and consider the limits to this approach. We conclude that rather than promoting one large and ideologically homogenous revolution in education and capacity building, there is a need for a revolution in the way that leaders working with education and capacity building look at systems and processes of change. From this perspective, transformative learning may not only be desirable, but critical in responding to the challenges posed by global environmental change.

The effects of urbanization on ozone levels have been widely investigated over cities primarily located in temperate and/or humid regions. In this study, nested WRF-Chem simulations with a finest grid resolution of 1 km are conducted to investigate ozone concentrations O₃ due to urbanization within cities in arid/semi-arid environments. First, a method based on a shape preserving Monotonic Cubic Interpolation (MCI) is developed and used to downscale anthropogenic emissions from the 4 km resolution 2005 National Emissions Inventory (NEI05) to the finest model resolution of 1 km. Using the rapidly expanding Phoenix metropolitan region as the area of focus, we demonstrate the proposed MCI method achieves ozone simulation results with appreciably improved correspondence to observations relative to the default interpolation method of the WRF-Chem system. Next, two additional sets of experiments are conducted, with the recommended MCI approach, to examine impacts of urbanization on ozone production: (1) the urban land cover is included (i.e., urbanization experiments) and, (2) the urban land cover is replaced with the region's native shrubland. Impacts due to the presence of the built environment on O₃ are highly heterogeneous across the metropolitan area. Increased near surface O₃ due to urbanization of 10–20 ppb is predominantly a nighttime phenomenon while simulated impacts during daytime are negligible. Urbanization narrows the daily O₃ range (by virtue of increasing nighttime minima), an impact largely due to the region's urban heat island. Our results demonstrate the importance of the MCI method for accurate representation of the diurnal profile of ozone, and highlight its utility for high-resolution air quality simulations for urban areas.