Reed water tube boiler straight tubes through which water and steam circulated more freely, it was considered by some contemporary writers on the subject such as Leslie S. Robertson as "behind" in its circulation because of the absence of down-comers. Whereas the Yarrow boilers fitted to the armoured cruiser of 1905 evaporated 11.664 pounds (5.291 kg) of water per pound (454 g) of coal at 100 degrees centigrade (212 degrees Fahrenheit) with natural draught, by the same measure a Reed boiler as fitted to the torpedo boat destroyer of 1896 evaporated 12 pounds (5.44 kg). An advantage of the Yarrow boiler was in weight:
Mother Earth Water Walk Mother Earth Water Walk Mother Earth Water Walk is an Anishinaabe led initiative dedicated to raising awareness about the importance of water and the need for protection of water. Organizers and participants have walked around bodies of water since 2003 as a way of taking action against water pollution. In 2003 Anishinaabe grandmothers, including Grandmother Josephine Mandamin, along with many Anishinaabe women and men, began walking around the Great Lakes on Turtle Island. They came together to raise awareness about society's negligence towards water. In 2011 a Health Canada study found that 122 First Nation communities were under water advisories.