Since the 1997 international accord to fight global warming, climate change has worsened and accelerated — beyond some of the grimmest of warnings made back then.

As the world has talked for a dozen years about what to do next, new ship passages opened through the once frozen summer sea ice of the Arctic. In Greenland and Antarctica, ice sheets have lost trillions of tons of ice. Mountain glaciers in Europe, South America, Asia and Africa are shrinking faster than before.

Alberta’s oilsands produce more greenhouse gas emissions than some European countries right now and will produce more than all of the world’s volcanoes in just 11 years if the pace of development continues, a new report says.

“Dirty: How the Tarsands Are Fuelling Global Climate Change” is set to be released Monday.

Greenpeace commissioned award-winning author Andrew Nikiforuk, a business and environmental reporter, to write the report.

Sea levels could rise faster along the U.S. East Coast than in any other densely populated part of the world, new research shows, as changes in ice caps and ocean currents push water toward a shoreline inlaid with cities, resort boardwalks and gem-rare habitats.

Three studies this year, including one out last month, have made newly worrisome forecasts about life along the Atlantic over the next century. While the rest of the world might see seven to 23 inches of sea-level rise by 2100, the studies show this region might get that and more – 17 to 25 inches more – for a total increase that would submerge a beach chair.

A massive ice shelf anchored to the Antarctic coast by a narrow and quickly deteriorating ice bridge could break away soon, the European Space Agency warned Friday.

The Wilkins Ice Shelf — which like the rest of Antarctic’s ice sheet “was formed by thousands of years of accumulated and compacted snow” — had been stable for most of the last century before it began retreating in the 1990s, the statement said.

California’s farms and vineyards could vanish by the end of the century, and its major cities could be in jeopardy, if Americans do not act to slow the advance of global warming, Secretary of Energy Steven Chu said Tuesday.

“I don’t think the American public has gripped in its gut what could happen,” he said. “We’re looking at a scenario where there’s no more agriculture in California.” And, he added, “I don’t actually see how they can keep their cities going” either.