Search the SPREP Catalogue

The term given to the variety of life on Earth, provides, through its expression as ecosystems, goods and services that sustain our lives. Human pressures on ecosystems are causing changes and losses at rates not seen historically. People are changing ecosystems more rapidly and more extensively than over any other period in human history. Climate change adds yet another pressure on natural ecosystems.

Massive coral bleaching episodes have impacted the function of the reefs and increased rates of mortality. Coral reefs support over one million plant and animal species and their economic value is pro¬jected to more than US $ 30 billion annually. Extreme climatic con¬ditions, however, are most likely to increase in the future with cur¬rent climate scenarios. Projected increases in carbon dioxide and temperature exceed the conditions under which coral reefs have flourished over the past 500 000 years. Coral reefs are crucial bio¬diversity hotspots and support both coastal fisheries and tourism in many regions. Coral reefs, however, are in decline in many regions as a result of numerous pressures, including, but not limited to, extreme climate events, unsustainable fishing practices, diseases, sedimentation, and discharge of untreated sewage. Increasing re¬silience and securing rapid recovery of coral reefs will be essen¬tial for the ability of these ecosystems to support coastal fisheries and coastal livelihoods and cultures in the future. However, this resilience and recovery may be seriously impounded by unsustain¬able coastal infrastructure development and marine pollution from land-based sources. At the current rate of growth, coastal develop¬ment may impact up to 90% of the tropical and temperate coast¬lines by 2032 if development continues unchecked. While progress has been made to reduce the discharge and impacts of oil spills and persistent organic pollutants (POP’s), there now needs to be a focus on the largest current threats to the coastal marine environment : untreated sewage and piecemeal coastal development.

As noted in the Millennium Ecosystem Assessment, climate change is one of the most important drivers of biodiversity loss" and is projected to further adversely affect the role of biodiversity as a source of goods and services. The impacts of climate change on biodiversity have been of major concern to the Convention on Biological Diversity since 2002 when, following a request from the Conference of the Parties and the Subsidiary Body on Scientific, Technical and Technological Advice (SBSTTA), an Ad Hoc Technical Expert Group was established to carry out an assessment of the interlinkages between biodiversity and climate change. The report was completed in 2003 and focused primarily on the impacts of climate change mitigation options on biodiversity, and the links between them, in the context of the Kyoto Protocol.

In addition, biodiversity plays a direct role in climate regulation. Biodiversity affects the ability of terrestrial ecosystems to capture atmospheric carbon, their rates of evapotranspiration and temperature, all of which affect climate at local and global levels. Biodiversity affects atmospheric carbon sequestration primarily through its effects on species’ characteristics, which determine how much carbon is taken up from the atmosphere, how much will be retained or fixed, and how much of this carbon will be released back into the atmosphere over time. The appropriate choice of species is potentially critical for maximizing carbon sequestration in the design and implementation of Climate Change mitigation activities.

More is known about birds’ response to climate change to date than for any other animal group, mostly as a result of many species- and location-specific analyses. Yet of the global or international-scale analyses of biodiversity and climate change, very few concentrate on birds in particular. This review seeks to provide a global survey of the climate threat to birds by compiling hundreds of individual studies to resolve the larger picture of impacts

This handbook provides an overview of the United Nations Framework Convention on Climate Change (the Convention) as of August 2006. It focuses on the institutional framework of the Convention and the actions taken by the Conference of the Parties to the Convention (COP). It touches on some aspects of the Kyoto Protocol but it is first and foremost a handbook to the Convention.

Scientific evidence of human interference with the climate first emerged in the international public arena in 1979 at the First World Climate Conference (see timelines). As public awareness of environmental issues continued to increase in the 1980s, governments grew even more concerned about climate issues. In 1988 the United Nations General Assembly adopted resolution 43/53, proposed by the Government of Malta, urging: "... protection of global climate for present and future generations of mankind."

The evolution and expansion of the human species over the past few hundred thousand years, an infinitesimal fraction of planetary time, now sees us as the dominant life form on Earth. We are dominant because of our intelligence and adaptability, and our need to constantly strive for newer and better ways of doing things. But there are now six billion of us, predicted to increase to 8-10 billion by 2050, and our domination of the planet is paralleled by the massive impact that we have had on the Earth's ecosystems. A recent mapping of the human footprint on the planet has concluded that more than 80% of the Earth's land surface is directly influenced by humans. We consume 40% of the Earth's net primary productivity, 35% of oceanic shelf productivity and 60% of freshwater runoff. As a result, remaining natural landscapes are rapidly being modified and the Earth's biological diversity continues to decline at an alarming rate. The Millennium Ecosystem Assessment (MEA) has found that in the last several decades 20% of the world’s coral reefs were lost and 20% degraded, while 35% of mangrove area has been lost. The MEA also concluded that humans have likely increased the species extinction rate by as much as 1,000 times over background rates typical throughout Earth's history.

The impacts of climate change on biodiversity and the degree to which autonomous and directed adaptation will lesson these impacts are likely to be complex and hard to predict. This will make the research information we gain particularly difficult to communicate to the people who will be required to act on this information, namely ecosystem managers, resource managers, the public and policy makers