Sustainable development is an approach to growth and human development that aims to meet the needs of the present without compromising the ability of future generations to meet their own needs. The aim is to have a society where living conditions and resources meet human needs without undermining planetary integrity. Sustainable development aims to balance the needs of the economy, environment, and social well-being. The Brundtland Report in 1987 helped to make the concept of sustainable development better known.
The environmental movement is a social movement that aims to protect the natural world from harmful environmental practices in order to create sustainable living. Environmentalists advocate the just and sustainable management of resources and stewardship of the environment through changes in public policy and individual behavior. In its recognition of humanity as a participant in ecosystems, the movement is centered on ecology, health, as well as human rights.
James Henry Miller, better known by his stage name Ewan MacColl, was an English folk singer-songwriter, folk song collector, labour activist and actor. Born in England to Scottish parents, he is known as one of the instigators of the 1960s folk revival as well as for writing such songs as "The First Time Ever I Saw Your Face" and "Dirty Old Town".
Conservation biology is the study of the conservation of nature and of Earth's biodiversity with the aim of protecting species, their habitats, and ecosystems from excessive rates of extinction and the erosion of biotic interactions. It is an interdisciplinary subject drawing on natural and social sciences, and the practice of natural resource management.
A keystone species is a species that has a disproportionately large effect on its natural environment relative to its abundance. The concept was introduced in 1969 by the zoologist Robert T. Paine. Keystone species play a critical role in maintaining the structure of an ecological community, affecting many other organisms in an ecosystem and helping to determine the types and numbers of various other species in the community. Without keystone species, the ecosystem would be dramatically different or cease to exist altogether. Some keystone species, such as the wolf and lion, are also apex predators.
A conventional idea of a sustainable fishery is that it is one that is harvested at a sustainable rate, where the fish population does not decline over time because of fishing practices. Sustainability in fisheries combines theoretical disciplines, such as the population dynamics of fisheries, with practical strategies, such as avoiding overfishing through techniques such as individual fishing quotas, curtailing destructive and illegal fishing practices by lobbying for appropriate law and policy, setting up protected areas, restoring collapsed fisheries, incorporating all externalities involved in harvesting marine ecosystems into fishery economics, educating stakeholders and the wider public, and developing independent certification programs.
Canada ranks 36th by population among countries of the world, comprising about 0.5% of the world's total, with more than 40 million Canadians as of 2024. Despite being the second-largest country by total area, the vast majority of the country is sparsely inhabited, with most of its population south of the 55th parallel north. Just over 60 percent of Canadians live in just two provinces: Ontario and Quebec. Though Canada's overall population density is low, many regions in the south, such as the Quebec City–Windsor Corridor, have population densities higher than several European countries. Canada has six population centres with more than one million people: Toronto, Montreal, Vancouver, Calgary, Edmonton and Ottawa.
In conservation biology, a flagship species is a species chosen to raise support for biodiversity conservation in a given place or social context. Definitions have varied, but they have tended to focus on the strategic goals and the socio-economic nature of the concept, to support the marketing of a conservation effort. The species need to be popular, to work as symbols or icons, and to stimulate people to provide money or support.
John Walter Grant MacEwan was a Canadian farmer, professor at the University of Saskatchewan, Dean of Agriculture at the University of Manitoba, the 28th Mayor of Calgary and both a Member of the Legislative Assembly (MLA) and the ninth Lieutenant Governor of Alberta, Canada. MacEwan University in Edmonton, Alberta, and the MacEwan Student Centre at the University of Calgary as well as the neighbourhoods of MacEwan Glen in Calgary and MacEwan in Edmonton are named after him.
Wildlife management is the management process influencing interactions among and between wildlife, its habitats and people to achieve predefined impacts. It attempts to balance the needs of wildlife with the needs of people using the best available science. Wildlife management can include wildlife conservation, gamekeeping and pest control. Wildlife management draws on disciplines such as mathematics, chemistry, biology, ecology, climatology and geography to gain the best results.
Sir Edward Anthony Wrigley was a British historical demographer. Wrigley and Peter Laslett co-founded the Cambridge Group for the History of Population and Social Structure in 1964.
The 1969 White Paper was a policy paper proposal set forth by the Government of Canada related to First Nations. Prime Minister Pierre Trudeau and his Minister of Indian Affairs, Jean Chrétien, issued the paper in 1969. The White Paper proposed to abolish all legal documents that had previously existed, including the Indian Act, and all existing treaties within Canada, comprising Canadian Aboriginal law. It proposed to assimilate First Nations as an ethnic group equal to other Canadian citizens. The White Paper was met with widespread criticism and activism, causing the proposal to be officially withdrawn in 1970.
Since declaring independence in 1981, Belize has enacted many environmental protection laws aimed at the preservation of the country's natural and cultural heritage, as well as its wealth of natural resources. These acts have established a number of different types of protected areas, with each category having its own set of regulations dictating public access, resource extraction, land use and ownership.
In ecology, resilience is the capacity of an ecosystem to respond to a perturbation or disturbance by resisting damage and subsequently recovering. Such perturbations and disturbances can include stochastic events such as fires, flooding, windstorms, insect population explosions, and human activities such as deforestation, fracking of the ground for oil extraction, pesticide sprayed in soil, and the introduction of exotic plant or animal species. Disturbances of sufficient magnitude or duration can profoundly affect an ecosystem and may force an ecosystem to reach a threshold beyond which a different regime of processes and structures predominates. When such thresholds are associated with a critical or bifurcation point, these regime shifts may also be referred to as critical transitions.
Calgary is the largest city in the Canadian province of Alberta. It is the largest metro area within the three prairie provinces. As of 2021, the city proper had a population of 1,306,784 and a metropolitan population of 1,481,806, making it the third-largest city and fifth-largest metropolitan area in Canada.
Nathan Rosenberg was an American economist specializing in the history of technology.
In environmental science, a population "overshoots" its local carrying capacity — the capacity of the biome to feed and sustain that population — when that population has not only begun to outstrip its food supply in excess of regeneration, but actually shot past that point, setting up a potentially catastrophic crash of that feeder population once its food populations have been consumed completely. Overshoot can apply to human overpopulation as well as other animal populations: any life-form that consumes others to sustain itself.
The history of environmental pollution traces human-dominated ecological systems from the earliest civilizations to the present day. This history is characterized by the increased regional success of a particular society, followed by crises that were either resolved, producing sustainability, or not, leading to decline. In early human history, the use of fire and desire for specific foods may have altered the natural composition of plant and animal communities. Between 8,000 and 12,000 years ago, agrarian communities emerged which depended largely on their environment and the creation of a "structure of permanence."
Harvey Locke is a Canadian conservationist, writer, and photographer. He is a recognized global leader in the field of parks, wilderness, wildlife and large landscape conservation. He is a founder of the Yellowstone to Yukon Conservation Initiative, with the goal to create a continuous corridor for wildlife from Yellowstone National Park in the United States to the Yukon in Northern Canada. In 2017, Locke was appointed chair of the IUCN World Commission on Protected Areas Beyond the Aichi Targets Task Force, with the goal of ensuring the new global conservation targets set at the next Conference of the Parties of the Convention on Biological Diversity in 2020 are meaningful for achieving the conservation of nature and halting of biodiversity loss.
John Paul Holdren is an American scientist who served as the senior advisor to President Barack Obama on science and technology issues through his roles as assistant to the president for science and technology, director of the White House Office of Science and Technology Policy, and co-chair of the President's Council of Advisors on Science and Technology (PCAST).
