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The earth works like a greenhouse. Carbon dioxide (CO2), methane, and other naturally occurring greenhouse gases (GHGs), as well as human-made industrial gases trap heat from escaping into space. This keeps the earth’s temperature within a life-sustaining range. Without the greenhouse effect, Earth would be much colder—an average temperature of –19° Celsius (C). Human reliance on fossil fuels for energy has increased the amount of CO2 in the atmosphere. Biogenic emissions of GHG from land use have magnified the greenhouse effect. Deforestation and poor land use, which have reduced the absorptive capacity of plants, forests, and soils for CO2, have made things worse.

Coastal communities in the Pacific are without doubt some of the most vulnerable to climate change effects in the world. The limited land area in some countries and low profile of atolls (many only 3m above sea level at high tide) exacerbate the vulnerability of these locations, and the governments and people of these countries have limited capacities and resources to cope at all levels.

Is a new Ice Age inevitable or will life on earth disappear in a colossal flood? "The climate puzzle" examines milestones in climate science that reveal a half million year history of Earth's weather. Join scientist as they comb the continents in search of the forces generating our climate. Gaze into a computerized crystal ball that shows the weather of the distant past ... and the far-off future. Learn about the ominous role of termites in the global warming trend. Combining amazing new facts with riveting views of climatic phenomena, the answers to the climate puzzle present a facinating look at the workings of our world, PLANET EARTH|Witness the power of the savage forces that created ouor world. Voyage from the ocean's depths to the distant boundaries of the solar system. PLANET EARTH reveals the secret history of our four billion year old home.this vivid 7-part Emmy Award winning chronicle of discovery documents astonishing developments in the new geoscience as it guides us to a better understanding of our planet's past, present and future. Come along on a journey of breathtaking imagery and compelling ideas. Confront the furies and probe the mysteries that our PLANET EARTH

This report is targeted at policy-makers, particularly those responsible for developing climate mitigation and adaption strategies that address issues like conservation, ecosystem services, agriculture and sustainable livelihoods. It focuses on the primary linkages between invasive species and climate change, as well as the secondary and tertiary interactions of their corresponding impacts. Finally, the enclosed recommendations are intended to provide guidance on the best ways to integrate invasive species prevention and management into the consideration of climate change responses across a range of sectors. Building on a review of existing scientific and conservation literature (which is frequently centered on well-studied invasive species in developed countries), our research has reaffirmed that there are significant gaps and questions about the intersection of these two major drivers of change. The case studies included below highlight key relationships and questions related to invasive species, climate change and the role of ecosystem-based adaptation. The three key messages that can be distilled from this report are: 1. Climate change will have direct and second order impacts that facilitate the introduction, establishment and/or spread of invasive species. 2.Invasive species can increase the vulnerability of ecosystems to other climate-related stressors and also reduce their potential to sequester greenhouse gasses. 3.Using an ecosystem-based adaptation approach, these pressures on ecosystems and their ability to provide important services can be offset by preventing the introduction of new invasive species and by eradicating or controlling those damaging species already present.

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