It is often thought that there are five oceans: the Atlantic, Pacific, Indian, Arctic and Southern (Antarctic). In reality they are all connected by a continuous circulation of currents around the world, creating one single continuous body of water, a global ocean. This ONE ocean plays a vital role in regulating and sustaining our planet. For example, did you know that around half the oxygen we breathe comes from the ocean? But, with declining ocean health, our future is in the balance. Biodiversity loss, pollution and climate change are all affecting our marine environment in ways we are only beginning to understand. We need to act now if we are to truly understand the full impact before it is too late. As the UK’s leading ocean science charity, we work to advance ocean and climate research, deliver pioneering solutions, and educate future generations, all to help our ocean thrive. You can be a part of this vital work by pledging to protect our ocean today and in the future.