The question posed, "How long before climate change will destroy the Earth?" is an important and complex issue. While there is a consensus among scientists that climate change is a serious threat and requires urgent action, it is not accurate to say that it will destroy the Earth altogether. Climate change's impacts are significant and can result in extreme weather events, rising sea levels, disrupted ecosystems, and other environmental challenges, but it is not an extinction-level event.

As for Australian children's interest in this topic, it is understandable that they may have questions and concerns about climate change. Their curiosity reflects the growing awareness and concern about environmental issues among young people. It's crucial for adults, educators, and policymakers to engage with children in honest, age-appropriate discussions about climate change, providing them with accurate information, empowering them to take responsible actions, and fostering hope and resilience.