- World Report 2024: Canada (hrw.org)
Since assuming office in 2015, the government of Prime Minister Justin Trudeau has taken significant steps to advance human rights at home and abroad. Despite progress in a few key areas, a range of deeply entrenched challenges remain. These include wide-ranging abuses against Indigenous peoples and immigration detainees, including people with disabilities. Canada’s failures to mitigate the impacts of climate change and provide adequate government support are also leading to violations in Indigenous communities across the country while compounding risks for people with disabilities, children, and older people.
- Limestone (Wikipedia)
Limestone (calcium carbonate CaCO3) is a type of carbonate sedimentary rock which is the main source of the material lime. It is composed mostly of the minerals calcite and aragonite, which are different crystal forms of CaCO3. Limestone forms when these minerals precipitate out of water containing dissolved calcium. This can take place through both biological and nonbiological processes, though biological processes, such as the accumulation of corals and shells in the sea, have likely been more important for the last 540 million years. Limestone often contains fossils which provide scientists with information on ancient environments and on the evolution of life.
