Despite them living for up to 2,500 years, researchers have discovered several baobab trees in Africa have died. Aida Cuni Sanchez on why these trees have a special place in our world.
As the world prevaricates over climate action, Antarctica’s future is shrouded in uncertainty.
Hamish Pritchard/British Antarctic Survey
What will Antarctica look like in 2070? Will the icy wilderness we know today survive, or will it succumb to climate change and human pressure? Our choices over the coming decade will seal its fate.
Without floating sea ice, climate-weakened ice shelves are wide open to attack by waves.
AAP Image/Caroline Berdon
Since 1995, several ice shelves off the Antarctic Peninsula have abruptly disintegrated. A new analysis suggests that these events are triggered when ice shelves lose their buffer of floating ice.
The northeast edge of the Venable Ice Shelf, near Antarctica’s Allison Peninsula.
NASA/John Sonntag
Last summer one of Antarctica’s floating ice shelves calved an iceberg the size of Delaware – but scientists say other less dramatic changes reveal more about how and why Antarctica is changing.
As atmospheric carbon dioxide levels rise, rice plants produce fewer vitamins and other key nutrients. This could worsen hunger, malnutrition, child stunting and other diet-related health problems.
It would be in Africa’s best interests to limit a rise in global temperature.
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New research projects that climate change could greatly increase airborne dust levels in the southwestern US, causing higher hospital admissions and premature deaths from heart and lung ailments.
Bottlenose dolphins off the coast of New Jersey.
Artie Kopelman
How can marine preserves best protect sea creatures that move in and out of them? Two ocean scientists describe new thinking about designing marine protected areas.
Andrew Lorrey, National Institute of Water and Atmospheric Research; Andrew Mackintosh, Te Herenga Waka — Victoria University of Wellington, and Brian Anderson, Te Herenga Waka — Victoria University of Wellington
Forty years of continuous end-of-summer snowline monitoring of New Zealand’s glaciers brings the issue of human-induced climate change into tight focus.
Demonstrators protest the Trans Mountain pipeline expansion – and compare Justin Trudeau to Donald Trump – at a gathering in Vancouver on May 29, 2018. The controversy over the pipeline requires a national compromise.
THE CANADIAN PRESS/Darryl Dyck
The Trans Mountain Pipeline Expansion is fast becoming one of the most divisive issues in Canadian politics in years. Here’s how a compromise can be reached.
Copepod with eggs (blue). Copepods are typically just a few millimeters long, but are important food sources for small fish.
NOAA
DNA sequencing is making it possible for scientists to identify thousands of species of zooplankton – drifting animals that are key links in ocean food webs.
The bird faces a wave of challenges – from climate change to human hunters.
A aerial view of Kinder Morgan’s Trans Mountain marine terminal, in Burnaby, B.C., is shown on Tues., May 29, 2018.
(Jonathan Hayward/THE CANADIAN PRESS)
Canada wants to move towards a green economy and meet its Paris Agreement targets, but it has also just taken ownership of a pipeline. How can the federal government deal with this paradox?
Children will be responsible for the future protection of our fragile planet. Their knowledge and engagement are critical.
According to a recent report, New Zealand will need to increase renewable electricity generation, plant more trees and continue switching to electric transport more rapidly to achieve its zero carbon goal by 2050.
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New Zealand has set itself a goal of becoming carbon neutral by 2050, and a recent report by the Productivity Commission lays out how it could hit that target.
People listen during a protest against the Kinder Morgan Trans Mountain pipeline expansion on May 29, 2018. The federal government’s decision to buy the project doesn’t inspire confidence for potential investors eyeing Canada.
THE CANADIAN PRESS/Darryl Dyck
The decision of the Canadian government to purchase the $4.5 billion Kinder Morgan pipeline expansion project doesn’t exactly instil confidence in Canada’s investment climate.
Marine heatwaves can kill off species and alter ecosystems.
(Shutterstock)