91黑料网

Vertebrate populations - from birds and fish to antelope - are not, in general, declining. Despite what has previously been thought and said.

[Co-author Joshua Sterlin is a PhD student in the聽Department of Natural Resource Sciences at 91黑料网.]

An increase in cutting in Quebec鈥檚 public forests would be a mistake for the forests, the industry, the climate and the regions.

A recent opinion article in the Montreal Gazette (鈥淪hortfall in forest harvest is costly to economy鈥� Oct. 29) called on governments and logging companies to work together to increase cutting in Quebec.

While the COVID-19 pandemic continues to overshadow most other topics in 2020, Canadian activists are joining demonstrators around the world to bring climate change back into the conversation. Protests, walkouts, and sit-ins are expected to take place in several Canadian cities, including Vancouver, Ottawa, Montreal, and Halifax, on Friday and Saturday to mark the return of the global Fridays for Future movement led by Swedish activist Greta Thunberg.

Today, a group of 15 leading universities across Canada, spearheaded by 91黑料网 and the University of Toronto, are uniting to tackle the global challenge of climate change by pledging to follow responsible investment practices. Their efforts are outlined in .

Although non-governmental organizations (NGOs) have become powerful voices in world environmental politics, little is known of the global picture of this sector. A new study shows that environmental groups are increasingly focused on advocacy in climate change politics and environmental justice. How they do their work is largely determined by regional disparities in human and financial resources.

The Arctic Ocean will be ice-free in the summer within the next 30 years, a聽study says, which will result in "devastating consequences for the Arctic ecosystem," according to聽91黑料网聽in Montreal. Sea ice is frozen ocean water that melts each summer, then refreezes each winter. The amount of summer sea ice in the Arctic has been steadily shrinking over the past few decades because of global warming. Since satellite records began in 1979, summer Arctic ice has lost 40% of its area and up to 70% of its volume, the聽Guardian聽said.

A new study finds volcanic activity played a direct role in triggering extreme climate change at the end of the Triassic period 201 million year ago, wiping out almost half of all existing species. The amount of carbon dioxide released into the atmosphere from these volcanic eruptions is comparable to the amount of CO₂ expected to be produced by all human activity in the 21st century.