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For more than 40 years, the International Union for Conservation of Nature (IUCN) has published the Red List of Threatened Species describing the conservation status of various species of animals. They are now also including plants in their lists and the picture they present is dramatic. According to recent estimates, around 20 per cent of flowering plants are currently at risk of extinction - though the exact number is unknown since such a small proportion of plant species has even been measured.

Although the dune ecosystem is unusual, fragile and is protected by the "habitats" directive of the network Natura 2000, its conservation is very vulnerable to the proliferation of car parks, nearby buildings and inadequate boardwalks installed for protection or beach access.

Marine researchers from the Wildlife Conservation Society and other groups have created a map of the world's corals and their exposure to stress factors, including high temperatures, ultra-violet radiation, weather systems, sedimentation, as well as stress-reducing factors such as temperature variability and tidal dynamics.

New research shows people may not be responsible for the rarity of a native tree species - a finding that could change how conservation is approached.

A two-year energy audit of Hamilton schools has identified energy conservation measures that could reduce their energy costs by almost $2.4 million annually. The audit was conducted by engineering faculty and students at McMaster University.

Changing human activities coupled with a dynamic environment over the past few centuries have caused fluctuating periods of decline and recovery of corals reefs in the Hawaiian Islands, according to a study sponsored in part by the Institute for Ocean Conservation Science at Stony Brook University. Using the reefs and island societies as a model social-ecological system, a team of scientists reconstructed 700 years of human-environment interactions in two different regions of the Hawaiian archipelago to identify the key factors that contributed to degradation or recovery of coral reefs.

Instinct and the annual increase of daylight hours have long been thought to be the triggers for birds to begin their spring migration. Scientists at the Smithsonian Conservation Biology Institute, however, have found that that may not be the case. Researchers have focused on how warming trends in temperate breeding areas disrupt the sensitive ecology of migratory birds. This new research shows that changes in rainfall on the tropical wintering grounds could be equally disruptive. The team's findings are published in scientific journal Proceedings of the Royal Society B, today, March 30.

The Deepwater Horizon oil spill of 2010 devastated the Gulf of Mexico ecologically and economically. However, a new study published in Conservation Letters reveals that the true impact of the disaster on wildlife may be gravely underestimated. The study argues that fatality figures based on the number of recovered animal carcasses will not give a true death toll, which may be 50 times higher than believed.

Keeping moorland soils wet could prove vital in conserving some of Britain's important upland breeding bird species - by protecting the humble daddy longlegs, according to new research.

The old saying there's plenty more fish in the sea might soon no longer apply to the Mediterranean, says Swiss-based International Union for Conservation of Nature. A study it is releasing Tuesday, April 19, 2011 says more than 40 species of marine fish there could soon disappear - almost half the species of sharks and rays and at least 12 species of bony fish are threatened with extinction due to overfishing, pollution and loss of habitat.

Conservationists may need to change their approach to protecting animals and plants from extinction if they are to successfully shield key species and habitats from the effects of global climate change, according to a new review in the journal Science.

Mediterranean landscapes have undergone great change in recent decades, but species have adapted to this, at least in the case of roe deer, Spanish ibex, red deer and wild boar. This has been shown by Spanish researchers who have analysed the effects of changes in land use on the past, present and future distribution of these species.

Thousands of hectares of tropical dry forests in the Brazilian state of Minas Gerais are now safe from logging, thanks to scientists affiliated with a project called Tropi-Dry.

Active efforts are required to preserve biodiversity in the seas - that far most people are in agreement. But in our enthusiasm to save uncommon species, we sometimes miss the common species that form the basis of marine ecosystems. 'Change strategy' is the challenge to the authorities from researchers at the University of Gothenburg, Sweden.

The sign was a digital billboard, a new breed of outdoor advertising that is growing in both the region and the nation. The problem for Young, a Philadelphia architect, is that they're energy guzzlers, compared with other signage. In a recent report, he found that the largest of them can use 30 times what a typical household consumes. The report - funded by an independent grant but done under the auspices of an advocacy group that opposes the signs - concludes that as Philadelphia strives to become the nation's greenest city, a proliferation of digital signs might not be sending the right message.

The obscure technology used in heated automobile seats, gadgets that charge iPhones from the heat of a campfire, and other devices is undergoing a renaissance and could well emerge as a new "green" substitute for traditional sources of energy and play other key roles in addressing some of society's most pressing sustainability issues. That's the conclusion of an article on the technology - termed thermoelectrics - in the current issue of Chemical & Engineering News (C&EN) the American Chemical Society's weekly newsmagazine.