A unique attribute of Earth is the presence of plate tectonics.Not only does it give rise to continents, mountain chains, andocean basins but also promotes a high level of biodiversity. Itis the reason for the formation of the so-called ‘Pacific Ringof Fire’ – a belt of intense volcanic activity and a large numberof earthquakes surrounding the Pacific ocean. But whatdrives the plate motion? Did Earth always have plate tectonics?These are some fascinating geoscientific questions. Intrying to answer these questions, an effort is made to impressupon the reader the vast ocean of uncertainty, and hence theopportunity, in the field of Earth and Planetary Sciences. Tomake it more engaging, the article provides a peek into thelong process which culminated in the present-day theory ofplate tectonics on Earth. While the first half of the articlefocuses on subduction and its cause, the second half summarizesa recent finding made on the surface of Europa. In viewof readability across disciplines, the complex subject detailsare kept to bare minimum.

Despite the scientific consensus on the issue of climate change, we are yet to marshal a social consensus. Sorting this apparent dissonance is a challenge. The topic of climate change has become entrapped in so-called economic and socio-political wars. Scientific miscommunication has thwarted efforts to effectively engage with the public on this issue. If we can actively seek out the reasons that motivate denial, and try to understand the underlying structure that engenders misin-formation, then perhaps we can find ways to address them. There is an acute urgency to better strategize climate change communication. The scientific community should recognize the need for new pathways of effective communication. In summary, we need to adapt. The faster we affect a change, the better chances we have at avoiding a catastrophe. Time is of the essence!