According to Oxfam, which megatrend is highlighted by the statement "the richest 1% in the world have more than double the wealth of 6.9 billion people"?

The highlighted statement from Oxfam draws attention to wealth inequality on a global scale, emphasizing the significant gap between the wealthiest individuals and the majority of the world's population. This directly relates to demographic changes and wealth inequality, as it illustrates how a small proportion of the population controls a disproportionately large amount of wealth, while billions live with far less economic security.

Understanding demographic changes in this context is crucial, as shifts in population income, distribution, and access to resources often contribute to escalating wealth gaps. Wealth inequality reflects systemic issues within economic and social structures, making it a pertinent megatrend. Addressing this inequality and its implications is essential for sustainable development and social justice, aligning with the broader themes of sustainable investing that consider not only financial aspects but also societal impacts.

The other options do not focus specifically on wealth disparity in the same way. For instance, technological disruption and climate change are relevant concerns but do not directly encapsulate the essence of the statement regarding wealth distribution highlighted by Oxfam.