Canada's Prime Minister Justin Trudeau unexpectedly announced a carbon tax Monday. The tax, which goes into force in 2018, will apply to all provinces that have not implemented their own carbon pricing scheme by that time.
Once the EU submits the paperwork on Wednesday, the historic global climate accords will enter into force in 30 days.
Botswana, which has the world's largest elephant population and had previously supported limited trade in ivory, now seeks to provide elephants with the highest levels of protection.
Plans set in motion decades ago to save US species are seeing results, with more delistings from the 1973 Endangered Species Act under the Obama administration than under all previous administrations since the act's inauguration.
The last known living Rabbs' fringe-limbed tree frog was found dead in its enclosure at the Atlanta Botanical Garden last week, probably marking the end of the species.
India ratified the Paris Agreement on Climate Change at the United Nations on Sunday, the anniversary of Mahatma Gandhi's birth. India accounts for about 4.5 percent of global greenhouse gas emissions.
A shrinking population of red wolves in North Carolina warrant USFWS protection, argue environmentalists, with the number of individuals declining from 100 to just 45 in the past two years.
The European Union agreed to a fast-track deal for the Paris climate accord on Friday. The deal, which pushes the agreement above the ratification threshold, means the commitments will enter into law before the next US president is elected.
UN wildlife officials have voted to ban trade in all eight species of Asian pangolins. The creature is prized for its meat and scales, which are used for medicinal purposes.
The right whale's numbers have been particularly affected by fishing gear, according to an August study.
Rising ocean temperatures prove difficult for baby lobsters to reach maturity, scientists say. How soon could New England's lobster industry be effected?
With the landmark climate agreement nearing ratification, scientists are investigating how likely nations are to fulfill their pledges. One study suggests the United States, for one, may have been overly optimistic.