Environmental marine engineering stands at the forefront of our battle to protect and restore our oceans, combining cutting-edge technology with ecological stewardship. This rapidly evolving field encompasses a range of crucial initiatives, from developing sustainable offshore structures that minimise environmental impact to spearheading marine ecosystem restoration projects that breathe new life into damaged habitats. As our planet grapples with the escalating threats of climate change and plastic pollution, environmental marine engineers are pioneering innovative solutions such as advanced ocean energy systems that harness the power of waves and tides, and sophisticated marine pollution control mechanisms to combat the tide of contaminants threatening our seas. Their work extends to coastal protection, where they design resilient structures to shield vulnerable shorelines from rising sea levels and increasingly severe storms. For conservationists and policymakers alike, the message is clear: environmental marine engineering is not just a scientific endeavour—it’s a vital lifeline for our blue planet, demanding urgent attention and support to safeguard our marine ecosystems for future generations.