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G20 Summit: Commitment to Climate Change Action Reaffirmed but Details Lacking

As G20 leaders concluded their meeting in Hangzhou on Monday, they reaffirmed their commitment to addressing climate change, but they did not agree on deadlines to ratify the Paris Agreement limiting Earth’s temperature increase to well below 2 degrees Celsius above pre-industrial levels and to pursue efforts to limit that increase to 1.5 degrees Celsius (subscription).…

Release of Carbon from Melting Permafrost Could Trigger Rapid Warming

A study published last week in Nature Geoscience provides the first measurements of greenhouse gases from permafrost under Arctic lakes in Alaska, Siberia, and Canada. Although the research reveals that only a small amount of old carbon has been released in the past 60 years, it also suggests that much more could be released as…

Study: Glacial Lakes Appearing in Antarctica

Antarctica is home to Earth’s largest ice mass, which unlike the Arctic remains frozen year round. But a new satellite-based study in the journal Geophysical Research Letters shows that atop the coastal Langhovde Glacier in East Antarctica’s Dronning Maud Land, large numbers of meltwater lakes have been forming. The study suggests that the lakes—nearly 8,000…

Americans View of Climate Change Polarized; U.N. Targets May Be Tough to Achieve

Surveys conducted by Yale University and George Mason University suggest that 17 percent of Americans view climate change as an alarming threat and that another 28 percent are concerned about climate change but view it as a distant threat. The subject has become highly contentious since 1997, when then Vice President Gore helped broker an…

Volcanic Eruption Affects Sea Level Rise

A new study in the journal Scientific Reports suggests that the evidence to pinpoint expected acceleration of sea-level rise due to climate change was hiding behind the effects of a 1991 eruption of Mount Pinatubo. This eruption sent tens of millions of tons of sulphur dioxide into the stratosphere and may have masked the effects of industrial…

New York Joins Handful of Other States with Ambitious Clean Energy Targets

By 2030, half of the energy produced in the state of New York will come from renewables, according to a new policy adopted Monday by the state’s public service commission. The move is expected to reduce greenhouse gas emissions by 40 percent from 1990 levels (80 percent by 2050) and to attract billions in clean…

Mayor of London, Sadiq Khan on his climate change priorities

Climate change is one of the biggest, if not the biggest, risk to London.  I want to put our city at the leading edge of the fight against this risk. But London can’t take on this challenge alone. That’s why I have joined forces with leaders of world cities to find ways that we can…

Canada oks use of Corexit for oil spills—despite what we’ve learned in the Gulf

Co-authored by Erica Cirino After Shell Oil’s Brutus oil well platform 90 miles south of the Louisiana coast spewed more than 88,000 gallons of crude oil into the Gulf of Mexico this May, Shell contracted Clean Gulf Associates and Marine Spill Response Corporation to clean up its mess. The two companies deployed workers in boats…

Study Quantifies Climate-Change-Related Deaths

A study in Environmental Research Letters suggests a fifth of premature deaths during a 2003 heatwave in Europe are linked to human-caused climate change. “We are now able to put a number on the deaths caused by climate change in a heat wave,” said lead author Daniel Mitchell of the University of Oxford. “This has…

Natural Fluctuations Responsible, in Part, for Antarctica Ice Growth

Natural fluctuations specifically related to the Interdecadal Pacific Oscillation (IPO) are responsible for the increased growth of Antarctic sea ice, according to a new study in the journal Nature Geoscience. A negative shift in the IPO has caused cooler-than-average sea surface temperatures in the Eastern Pacific, allowing Antarctic sea ice to expand since 2000. “The…

North American Leaders Commit to Clean Energy Goal

At the North American Leaders Summit on Wednesday, Mexico, Canada and the United States pledged to generate 50 percent of their energy from clean sources by 2025. The joint commitment by the three countries, according to White House Adviser Brian Deese, is “an aggressive goal” but one that is “achievable continent-wide.” “The Paris Agreement was…

Coral Reef Bleaching Event Forecast to Worsen; NASA Studies Cause in Pacific

Coral in every major reef region across the world has already experienced bleaching, and the National Oceanic and Atmospheric Administration (NOAA) forecasts that temperatures in much of the Pacific, Atlantic and Indian oceans could reach a point at which significant bleaching of corals is present this summer. NOAA’s Coral Reef Watch suggests that the greatest…

From Miami to Australia—Dredging and industrial activities killing coral reefs

Co-authored by Erica Cirino In the Port of Miami, the U.S. Army Corps of Engineers’ recent dredging project has buried as much as 81 percent of the area’s reef in silty sediment with up to 95 percent of the reef area surveyed no longer suitable habitat for corals, leaving its corals vulnerable to death, according…

On World Oceans Day, A View from the Top

A conversation with Bertrand Piccard, the scientist-adventurer currently on the American leg of his global solar flight on the Solar Impulse 2, on the view from 28,000 feet, how we nearly turned our ocean into a dump for nuclear waste and win-win solutions for a healthy planet. We spoke on the eve of World Oceans Day.…

Even in fish science, payers may sway players

Co-authored by John Hocevar Please see also the follow-up to this post, responding to some of the criticism and further explaining Carl’s perspective. The people of Seattle enjoy a closer-than-average relationship with the sea, fishing, and ocean science. Of course Seattle is home to a world famous fish market; after all, seafood, fish, and fishing are part of…