A Global Plan of Action of Climate Restoration

A GLOBAL ACTION PLAN OF CLIMATE RESTORATION

A global plan of climate restoration of the “small water cycle” (1) of regional landscapes, with a goal of decreasing floods, drought, natural disasters, and other undesirable climate changes, and increasing the biodiversity and production potential of all continents, through the introduction of various measures of rainwater retention suitable for all areas of human habitation and usage.

PORTUGAL-TAMERA – Bernd Mueller is a permaculture and water specialist, and head of Tamera’s ecology project. The focus of the ecological work of Tamera is on building the Water Retention Landscape as a far-reaching approach to healing the land, and regenerating water supplies, topsoil, pasture and forest, and greater diversity of species. See www.tamera.org.

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1. WHY IS A GLOBAL ACTION PLAN (GAP) NEEDED?

Water management policies worldwide are typically based on the principle of what can be termed the “old water paradigm,” which assumes among many other considerations, that surface waters are the main source and reserve of fresh water supplies. Global legislation and investment therefore tend to be oriented toward protecting, developing, and utilizing surface waters with infrastructure such as large reservoirs for water collection and distribution. Although rainwater is the cyclical source of all fresh- water supplies, it is nonetheless often considered to be waste product to be drained away quickly into streams and rivers.

There is a need to perceive by way of a “new water paradigm,”(1) that in natural ecosystems, water is integrated into small, regional water cycles, which supply vapor to the atmosphere to condense and form rain, the sun being the driving force of the circulation of water in small water cycles. We also need to appreciate the thermoregulatory processes provided by the movement of water between the surface of the earth and the atmosphere, which maintains the proper temperatures for life on earth.

NATURAL FOREST: USA- State of New Hampshire-Forested areas provide excellent shading, infiltration, and transpiration to regulate small water cycles in the landscape.

There needs to be increased attention on the gradual, sometimes almost imperceptible impacts of human activities that have led to the reduction of continental freshwater stocks. There is often a misconception that human activities have no direct effect on water cycles, and that temporal and spatial changes are either part of natural, evolutionary processes, or caused by global climate change. Therefore we tend to underestimate the influence of continental freshwater reserves on global energy and thermoregula- tory processes, as well as the degrading effects of climate change related to excessive drainage of ecosystems. These human impacts can detrimentally affect extensive territories; these include not only traditionally arid landscapes, but also areas of higher rainfall where human infrastructure drains water away from the land, ultimately to accumulate in the oceans.

It is necessary to retain about 100m3 of rainwater for every inhabitant on the planet. This means that, if every person on earth implemented measures to retain 100m3 of rainwater in their area within one year, enough water retention measures would be achieved to retain more than 760 km3 of water, which would in turn replenish the small water cycles in the atmosphere above land. This aforementioned rainwater, returned to the small water cycles, would lead to a decrease in ocean levels by 3 mm. Even if some doubts exist about the global program’s ability to reduce ocean levels, renew the climate or revive the small water cycles, it is nevertheless legitimate to initiate such a program, based on increased water resources such as that evidenced from an experimental program in the nation of Slovakia. Based on the findings of the Slovakian model, it can be expected that, at the global level, the retention of rainwater on land will result in the increased yield of water resources by more than 30 000 m3 per second and there- fore will kickstart the process of decreasing the production of sensible heat into the atmosphere, with an expected yearly reduction by 500 000 TWh. This will effectively lower the risks of natural disasters as well as occurrences of extreme weather events. More

Climate change and the world’s coasts

Coastal regions may face massive increases in damages from storm surge flooding over the course of the 21st century.

According to a new study published in the Proceedings of the National Academy of Sciences, global average storm surge damages could increase from about 10-40 billion USD per year today to up to 100,000 billion USD per year by the end of century, if no adaptation action is taken. The study lead by the Berlin-based think-tank Global Climate Forum (GCF) presents, for the first time, comprehensive global simulation results on future storm surge damages to buildings and infrastructure. Drastic increases in these damages are expected, on one hand, due to rising sea-levels and, on the other hand, due to population and economic growth. Asia and Africa may be particularly hard hit because of their rapidly growing coastal mega-cities, such as Shanghai, Manila or Lagos.

“If we ignore this problem, the consequences will be dramatic,” explained Jochen Hinkel from GCF and the study’s lead author. In 2100, up to 600 million people (around 5 percent of the global population) could be affected by coastal flooding if no adaptation measures are put in place. “Countries need to take action and invest in coastal protection measures, such as building or raising dikes, amongst other options,” urged Hinkel. With such protection measures, the projected damages could be reduced to below 80 billion USD per year during the 21st century. The researchers found that investments level of 10 to 70 billion USD per year could achieve such a reduction.

Prompt action is needed most in Asia and Africa, where today large parts of the population are

already affected by storm surge flooding. Yet even Germany must invest in coastal protection. It is not only dikes that are needed however. Alternative and more flexible coastal protection measures that better fit the natural environmental should also be developed. Examples of such alternatives to dikes are the reintroduction of mangrove forests, the rehabilitation of coastal dunes or artificial oyster banks.

Meeting the challenge of adapting to rising sea-levels will not be easy. “Poor countries and heavily impacted small-island states are not able to make the necessary investments alone. They need international support,” explained Hinkel. Adding to the challenge, international finance mechanisms have thus far proved sluggish in mobilising funds for adapting to climate change, as the debate on adaptation funding at the recent climate conference in Warsaw once again confirmed.

“If we do not reduce greenhouse gases swiftly and substantially, some regions will have to seriously consider relocating significant numbers of people in the longer run,” explained Hinkel. Yet regardless of how much sea-level rise climate change brings, careful long-term regional and urban planning can ensure that development in high-risk flood zones is avoided. This long-term perspective is however a challenge to bring about, as coastal development tends to be dominated by short-term interests of, for example, real-estate and tourism companies, which prefer to build directly at the waterfront. More