Scientific organizations from Commonwealth nations around the world have come together for the first time to urge governments to act on climate change.
The "Consensus Statement on Climate Change"—issued Monday ahead of next month's Commonwealth Heads of Government Meeting in the United Kingdom—is an unprecedented plea signed by the heads of 22 national academies and scientific societies that represent tens of thousands of scientists in Australia, India, Canada, New Zealand, Bangladesh, South Africa, the UK, Pakistan and more.
The recent documentary, Sea of Life, exposes key threats to the oceans, and calls for action.
Sea of Life follows filmmaker Julia Barnes on a three year adventure, spanning seven countries, to save coral reefs.
Although they cover less than 1 percent of the sea floor coral reefs support up to 30 percent of all species in the ocean at some stage in their life cycles. Often referred to as the rainforests of the ocean, coral reefs are one of the most biologically diverse ecosystems on the planet. They're also an indicator for the future of the oceans and all life on Earth.
As ocean waters warm and acidify, corals across the globe are disappearing. Desperate to prevent the demise of these vital ecosystems, researchers have developed ways to "garden" corals, buying the oceans some much-needed time. University of Miami Rosenstiel School marine biologist Diego Lirman sat down with Josh Chamot of Nexus Media to describe the process and explain what's at stake. This interview has been edited for length and clarity.
By Tim Radford
Geoengineering, the deliberate alteration of the planet to undo its inadvertent alteration by humans over the past 200 years, is back on the scientific agenda, with a climate compromise suggested as a possible solution.
One group wants to turn down the global thermostat and reverse the global warming trend set in train by greenhouse gases released by fossil fuel combustion, by thinning the almost invisible cirrus clouds that trap radiation and keep the planet warm.
By Marlene Cimons
They strengthen the corals' foundation by growing over and between gaps in coral reefs, essentially gluing sections of coral together. They provide a surface for baby corals to settle, and serve as food for marine life, including sea urchins, parrot fish and mollusks.
Norwegian businessman Kjell Inge Røkke is not someone usually admired for environmental stewardship. Described by Forbes as a "ruthless corporate raider," Røkke made his billions as the majority stakeholder in shipping and offshore drilling conglomerate, Aker.