Tracking Climate Change From Space
For centuries, rural communities in the high plateaus of the Andes have utilized water from melting glaciers that typify this amazing mountain range. But the retreat of these glaciers is forcing the communities to reconsider their livelihoods and ways to adapt. From a wider perspective, the melting of glaciers is an iconic warning to the larger cities in the Andes that rely on glaciers for potable water.
The Ecology of Recycling
While not on the front line of climate solutions, recycling of waste materials, wastewater, and wasted energy is a locally available and highly desirable means of reducing greenhouse gases. One potent greenhouse gas, the methane emitted from landfills and wastewater, accounts for about 90 per cent of greenhouse gas emissions from the entire waste sector
Unlayering of the Ozone: An Earth Sans Sunscreen
The formation of the Antarctic ozone hole is a graphic demonstration of how rapidly we can change the atmosphere of our planet. There are many other environmental issues facing us today and we must link them together to understand and debate the underlying causes, rather than treat each issue in isolation.
Greening the Workforce
The challenge of striking a deal in Copenhagen is not underestimated by the representatives of the world of work -- employers, workers and governments -- who come together at the International Labour Organization (ILO). They are aware of the profound changes in production and consumption patterns that a meaningful climate agreement will have. But their message to world leaders and to the negotiators is that they are ready for the challenges of the transformation of enterprises, jobs and employment patterns.
The True Costs of Conventional Energy
Renewable energy is expensive -- we cannot afford it. I have heard this argument many times over. But those who bring it up are wrong. The costs of renewable energy are not higher than those for conventional energy. Instead people confuse costs with prices and need to be better aware that the market price of conventional energy does not tell the truth.
Oil in a Low-carbon Economy
When it comes to the subject of energy in the Middle East, we instinctively think of oil -- the black gold that has been the source of stable and healthy economies in the region. Nevertheless, this is about to change. With the lead up to the United Nations Climate Change Conference in Copenhagen, Governments are realizing the imminent threat of climate change, and that there is no choice but to act fast.
Bare Sanctuaries
Loss of habitat is the greatest threat to biological diversity, and 85 per cent of the species on the 2006 Norwegian red list are threatened by changes in habitat. Highly-specialized species appear to be the most vulnerable. The polar bear is one such species, and the extent and sustainability of sea ice is essential for its survival. The global population of polar bears consists of roughly 20,000-25,000 individuals spread between 19 sub-populations.
Climate Change and Our Common Future: A Historical Perspective
I saw at one time a leaflet that asked people to come together in stopping climate change. It seems that many are not aware that the climate changes all the time and that the change is not stoppable. Climate changes, however, differ in their timing and magnitude and are a result of many factors, such as the distance between the sun and the equator, which contributes to the heat budget of the Earth, and the difference in the temperature of the equator from that of the cooler poles due to deviations in Earth's orbit, or variations in solar radiation.
Africa – A Future for Itself
How does Africa intend to deal with climate change and how can it help shape a better future for itself in the face of the coming environmental catastrophe? As concerns grow, the continent will for the first time negotiate under one umbrella in Copenhagen.
A Hypothesis of Hope for the Developing World
About 99 per cent of climate change casualties take place in the developing world. While economic growth and development are priorities in all countries, the needs in developing and least developed countries are on a different scale altogether. Developing countries are constrained by their particular vulnerability to the impacts of fickle weather and climate. The poor in these countries are at a higher risk to future climate change, given their heavy dependence on agriculture, strong reliance on ecosystem services, rapid growth and concentration of population and relatively poor health services.
Climate Change and Freshwater in Latin America and the Caribbean
Despite the fact that Latin America and the Caribbean have the largest freshwater resources per capita, a third of the region's population is cut off from sustained access to drinking water. Up until a few years ago, freshwater problems had been generally characterized as a result of inequitable natural distribution, lack of adequate financing for water infrastructure, poor freshwater governance, or a combination of the three.
Small Islands, Rising Seas
The threat posed by rising sea levels has been the centrepiece of climate change negotiations, the main issue emphasized by Small Island Developing States, also known as the SIDS. The poorer countries flanked by large bodies of water -- who have contributed the least to global warming, including rapid sea-level rise -- now find themselves at the precarious mercy of the historical polluters.
Learning from Slavery– The Legacy of the Slave Trade on Modern Society
In 2006, I gave some lectures at Harvard during which I called for a month, a week -- a day even -- of collective mourning for the millions whose souls still cry for proper burial and mourning rites. These lectures have now been published under the title: Something Torn and New. I did not know then that others were thinking along the same lines. I am glad that this day is being commemorated at the United Nations, but it should be actively observed in the whole world, as slave trade and plantation slavery were of prime importance in the making of the modern world.
Forecast 2020: Financial Meltdown and Malnutrition
In the aftermath of the recent global food crisis and economic downturn, the world's poor face unparalleled challenges to their food and nutrition security. While increased volatility in food prices will likely continue, wages for unskilled labour are failing to keep pace. Meanwhile, the financial crisis has pushed up unemployment and further reduced the purchasing power of poor people, who in a globalized economy now feel the effects of economic shocks more acutely.