In the context of this conversation, the claim that warrants the most justification is "Governments need to get involved and start taking it seriously."
This assertion serves as a foundational point for the entire discussion on climate change and reflects the critical role that governments play in addressing large-scale environmental issues. Justifying this claim involves explaining the responsibility of governments to implement policies, regulations, and initiatives that facilitate meaningful change in climate action, as well as the need for coordinated efforts on a global scale. Without government involvement, individual actions may be ineffective in producing the significant impact required to combat climate change. Additionally, this justification can include discussing the urgency and scale of the climate crisis, which often exceeds the capacity of individual actions alone.