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Marine environment

Overview

Seventy percent of the Earth's surface is covered by oceans and seas and more than half the world's population lives within 60km of the coast.

As an island nation, the seas and the life they contain are an integral part of the UK's national identity. We rely on our oceans and seas for jobs, food, resources including renewable sources (e.g. wind and tidal power, oil and gas), and recreation. They also mitigate climate change.

It is easy to see, therefore, how our health and the health of our planet depends in no small part on the condition of our oceans and seas. We need to act to protect our marine environment from the threats facing it.

In this section:

  • About Marine Environment
    Learn more about our vision for cleaner and healthy seas, how we plan to achieve this, the marine consents and environment unit and licensing.
  • Marine and Coastal Access Act
    To help deliver the Government's vision for the marine environment, the Marine and Coastal Access Act has been enacted by Parliament.

UK issues

  • Oil and Chemical Spill response / dispersants
    See MFA website

International issues

Negative impacts on the marine environment such as over fishing, dredging and pollution are world-wide problems. No one state can 'ring-fence' its waters so Defra strives towards improving the international protection of seas and coastal waters.

In order to influence decisions at an international level Defra is involved in a number of important conventions and agreements. These include;

Page last modified: 12 November 2009
Page published: 30 October 2008