IUCN Asia championed science, partnerships and local action at UNCCD COP17 - International Union for Conservation of Nature

Open this photo in gallery:Stephen Jarislowsky, shown in 2002, advocated for shareholder rights in Canada during his lengthy business career. Andre ForgetBillionaire investor Stephen Jarislowsky, a champion of corporate governance and former spy, has died at the age of 101. Mr. Jarislowsky co-founded what became of one of the country’s largest asset management firms, Jarislowsky Fraser Ltd., after moving to Montreal in the 1950s. He made his name as a pioneer advocate for shareholder rights, embracing the concept long before it became trendy by engaging in public battles with CEOs, family businesses and boards of directors. Later in his career, he became a philanthropist who supported the study of democracy at universities and built one of the country’s finest private art collections. In the 1970s and 80s, Mr. Jarislowsky fought against deals backed by Canadian corporate establishment, including the Billes family behind Canadian Tire, Montreal’s Bronfman clan, the corporate raider Conrad Black and auto parts magnate Frank Stronach. On Thursday, Mr. Black, the former chairman and chief executive officer of media company Hollinger Inc., paid tribute to his onetime sparring partner.

The spacecraft delivered materials and equipment for new research studies to the station.

Mud from a fjord shows an Atlantic air pattern brought wetter, colder spells to southern Greenland, a clue to how its ice may fare. Greenland’s ice is shrinking as the planet warms. But in the island’s southwest, rainfall and snowfall have been influenced by the same North Atlantic air-pressure pattern for at least 5,000 years. When that pattern tipped one way, the region turned wetter and colder. The record comes from mud on the floor of a Greenland fjord, and it suggests snowfall, not only temperature, shaped how the area’s ice grew and shrank. It doesn’t yet show how glaciers there will respond to the warming ahead. Johan Faust, a researcher at MARUM, the Center for Marine Environmental Sciences at the University of Bremen in Germany, led the work with colleagues in Germany, Norway, Denmark and Canada. A seesaw in the airThe pattern is called the North Atlantic Oscillation. It’s the difference in air pressure between a low that sits near Iceland and a high near the Azores, and it’s strongest in winter. When that difference is large, the pattern is in its positive phase. Northwestern Europe and southwestern Greenland both get more rain and snow.

Lawrence Livermore National Laboratory researcher Isaiah Santistevan led the development of three-dimensional simulations exploring how a nuclear device could deflect or disrupt an asteroid threatening Earth. Credit: Blaise Douros/LLNL Lawrence Livermore National Laboratory (LLNL) researchers are developing three-dimensional simulations to examine how a nuclear device could be used to deflect or potentially disrupt an asteroid threatening Earth.