Sea level rise increases the frequency and severity of coastal flooding and rates of coastal erosion. Sea level rise will continue far beyond the 21st century, even if global temperature increase is limited to 2°C above pre-industrial levels. This POSTnote sets out the causes and likely future levels of sea level rise and its implications. It updates POSTnote 363 on Sea Level Rise, published in September 2010.

The Government has identified ‘cyber’ as one of six Tier 1 threats to UK national security. This POSTnote focuses on the cyber security of the UK’s critical national infrastructure, describing measures to improve cyber security and challenges in implementing them. It also reviews the new National Cyber Security Strategy, along with international policy and legislation.

  • POSTnote

    Quantum Technologies use the behaviour of matter and light that is normally only observed at very small scales. This POSTnote introduces recent advances, applications, and UK initiatives to support their development and commercialisation. It also reviews policy concerns such as privacy, access to new technologies and secure communications.

  • POSTnote

    The 2015 Paris Agreement called for a balance between sources of Greenhouse Gas (GHG) emissions and their removal by 2100 to halt global temperature rise. This POSTnote explains why Greenhouse Gas Removal (GGR) techniques may be required to achieve this goal, outlines the benefits of and concerns about them, and considers policy options.

  • POSTnote

    In some parts of the UK, high levels of water abstraction are reducing the quantity and quality of surface water (rivers, lakes) and groundwater (water accumulated in spaces in soil and rocks). This POSTnote sets out the challenge of balancing competing requirements for freshwater, and summarises proposed reforms to the abstraction system in England and Wales and their implications

  • POSTnote

    The term nexus describes the key interactions between parts of a system or systems. This POSTnote summarises current understanding of the interactions between water, energy and food production and examines how nexus approaches can be used to inform policy decisions.

  • POSTnote

    The benefits derived from natural resources include food, recreation and clean air and water. The aim of valuing these resources is to quantify better the cost of their degradation. This POSTnote summarises how to value natural capital, discusses the advantages and challenges of approaches and describes some initiatives to secure natural capital for the future.

  • POSTnote

    This POSTnote explores the consequences of increasing the role of natural processes within landscapes. Evidence from the UK and abroad suggests that rewilding can benefit both wildlife and local people, but animal reintroductions could adversely affect some land-users.

  • POSTnote

    Circular economies recover resources at their highest quality and keep them in circulation for longer. Shifting to this model could alleviate concerns arising from current approaches to material use, such as resource insecurity and pollution. This POSTnote outlines what a circular economy could look like and summarises some of the benefits of, and challenges to, creating one.