The task Overall, the task is about preparing a business case for the CFO of Commonwealth Bank of Australia $($ASX: CBA$)$ that demonstrates how your solution$($s$)$ address the decarbonization challenges for the company in a fair and just manner. Your attempt should involve the below steps: $$ Propose one or more practical solutions that help to address the challenging areas. For the challenging areas you have identified in Assessment One, what would be your solution$($s$)$ in supporting decarbonization? Highlight how your solution$($s$)$ have the potential to affect key stakeholder groups, both positively and negatively. Clearly outline the steps involved in implementing your solution$($s$),$ from initial planning to monitoring progress and outcomes. $$ Develop a cost$$benefit analysis for your proposed solution$($s$).$ Develop a cost$-$benefit analysis using the Excel and help the CFO make an informed decision. As a guide you may include $($but not be limited to$)$ the following areas: Financial bottom line Costs o Revenue reductions from new markets, products or services. o Investments in decarbonization that require initial capital expenditure o Fixed and variable operating costs. o Operating costs associated with implementing the proposed solution$($s$).$ o Technology upgrades or workforce training. Benefits o Revenue opportunities from new markets, products or services. o Value from carbon reductions, e$.$g$.$ improved air quality, increase in agricultural production, biodiversity benefits, cost savings from electric vehicles, lower health risks. o Cost savings, e$.$g$.$ resulting from increased energy efficiency, reduced operational expenses. o Positioning the company for success in a zero$-$carbon economy. Environmental implications o Estimate the reduction in greenhouse gas emissions resulting from the proposed solution$($s$),$ considering both direct and indirect emissions across the company$$s value chain. o Environmental benefit associated with pollutants reduction. o Consider how the proposed solution$($s$)$ would impact the company$$s current decarbonization plans and the implications of this. Social implications o Evaluate the social benefits of the proposed solution$($s$)$ and how this makes it fairer for different stakeholder groups, e$.$g$.$ improvements in public health, job creation or community development. o Assess potential social risks such as community resistance, displacement concerns, unequal benefit distribution, cultural insensitivity, health and safety concerns, strain on local services, impact on social cohesion or noncompliance with regulations. $$ Prepare a business case and other supporting analysis. Prepare a business case with narrative explanation from the cost$-$benefit analysis, highlighting significant inputs, assumptions and conclusions. Consider a sensitivity analysis to account for uncertainties and variability in assumptions. Other analysis may also consider how well the company is performing in sustainability, and environmental, social, and governance aspects, by linking appropriate metrics and benchmarks.