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Campbellville, Ontario

Neighbourhoods in Milton, OntarioNiagara Escarpment
Campbellville, Ontario
Campbellville, Ontario

Campbellville is a compact rural community in the geographic township of Nassagaweya in the Town of Milton, Regional Municipality of Halton, Ontario, Canada. It is on the Niagara Escarpment and is a tourist destination for residents of the Greater Toronto Area.

Excerpt from the Wikipedia article Campbellville, Ontario (License: CC BY-SA 3.0, Authors, Images).

Campbellville, Ontario
Campbell Avenue East,

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N 43.488055555556 ° E -79.982222222222 °
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Campbell Avenue East

Ontario, Canada
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Campbellville, Ontario
Campbellville, Ontario
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Crawford Lake Conservation Area
Crawford Lake Conservation Area

Crawford Lake Conservation Area is a conservation area owned and operated by Conservation Halton near the community of Campbellville in Milton, Halton, Ontario, Canada. It is categorized as a regional environmentally sensitive area, an Ontario Area of Natural and Scientific Interest, and part of the Niagara Escarpment world biosphere reserve. The conservation area contains Crawford Lake, a reconstructed Iroquoian village, and several hiking trails. A study conducted in 1971 determined that the lake is meromictic, which makes the lake a prime site for archaeological and geochemical studies. Using pollen analysis, reconstruction of the history of the area over several hundred years was possible. Geochemical analysis of sediment cores has allowed for the reconstruction of the pollution history of the area. This analysis revealed the trends and sources of air pollution over approximately 150 years. The pollen analysis revealed corn pollen, indicating a possible Iroquoian settlement nearby, as corn was a staple of their agriculture. A search of the surrounding area found a grindstone, which would have been used in such a village. Digs of the area just south of the grindstone revealed the foundations of an eleven-longhouse village. The village, thought to be inhabited by either the Wendat (Huron) or Neutral Confederacy peoples, has been reconstructed in the conservation area and is based on many years of research by archaeologists, who continue to study the site. The reconstructed fifteenth century Iroquoian village is open seasonally and for special events. The site offers interpretive programs of Iroquoian life and culture and has three reconstructed longhouses and a palisade, although the original village did not have a palisade. One longhouse is used to display contemporary indigenous art and artifacts recovered from past digs. The longhouses are representative of life in the village at the time, with fireplaces, fur-lined bunk beds, and various items used at the time. The lake is named after the Crawford family, who lived on the site and donated the land to the conservation authority. Their house remained there until it burned down. All that survived was the front porch that was constructed of cement. Photographs of the original house and members of the Crawford family exist. The Crawford family also owned a cedar tree farm on the opposite side of the lake. The conservation area also has 19 kilometres (12 mi) of hiking and cross-country skiing and snowshoeing trails with connections to Bruce Trail. A boardwalk trail circles the lake, protecting the environment while allowing access. The trail is decorated with various sculptures and artistic benches. Another trail leads to the escarpment, and another connects to nearby Rattlesnake Point Conservation Area.

Anthropocene
Anthropocene

Anthropocene is a term that has been used to refer to the period of time during which humanity has become a planetary force of change. It appears in scientific social discourse, especially with respect to accelerating geophysical and biochemical changes that characterize the 20th and 21st centuries on Earth. Originally a proposal for a new geological epoch following the Holocene, it was rejected as such in 2024 by the International Commission on Stratigraphy (ICS) and the International Union of Geological Sciences (IUGS). The term has been used in sophisticated research relating to Earth's water and salt, geology, geomorphology, landscape, limnology, hydrology, ecosystems and climate. The effects of human activities on Earth can be seen, for example, in regards to biodiversity loss, and climate change. Various start dates for the Anthropocene have been proposed, ranging from the beginning of the Neolithic Revolution (12,000–15,000 years ago), to as recently as the 1960s. The biologist Eugene F. Stoermer is credited with first coining and using the term anthropocene informally in the 1980s; Paul J. Crutzen re-invented and popularized the term. The Anthropocene Working Group (AWG) of the Subcommission on Quaternary Stratigraphy (SQS) of the ICS voted in 2016 to proceed towards a formal golden spike (GSSP) proposal to define an Anthropocene epoch in the geologic time scale. Later that year, the group presented the proposal to the International Geological Congress. In 2019, the AWG voted in favour of submitting a formal proposal to the ICS by 2021. The proposal located potential stratigraphic markers to the mid-20th century. a post-World War II time period during which global population growth, economic growth, pollution and exploitation of natural resources have all increased at a dramatic rate. The Atomic Age also started around the mid-20th century, when the risks of nuclear wars, nuclear terrorism, and nuclear accidents increased. Twelve candidate sites were selected for the GSSP; the sediments of Crawford Lake (Halton Region), Canada were finally proposed, in 2023, to mark the lower boundary of the Anthropocene, starting with the Crawfordian stage/age in 1950. In 2024, after 15 years of deliberation, the Anthropocene Epoch proposal of the AWG was voted down by a wide margin by the SQS, owing largely to its shallow sedimentary record and extremely recent proposed start date. The ICS and the IUGS later formally confirmed, by a near unanimous vote, the rejection of the AWG's Anthropocene Epoch proposal for inclusion in the Geologic Time Scale. The IUGS statement on the rejection concluded: "Despite its rejection as a formal unit of the Geologic Time Scale, Anthropocene will nevertheless continue to be used not only by Earth and environmental scientists, but also by social scientists, politicians and economists, as well as by the public at large. It will remain an invaluable descriptor of human impact on the Earth system."