What is climate change? The planet's climate has constantly been changing over geological time. The global average temperature today is about 15C, though geological evidence suggests it has been much higher and lower in the past. However, the current period of warming is occurring more rapidly than many past events. Scientists are concerned that the […]
As well as rapidly reducing the carbon dioxide that we humans are pumping into the atmosphere in huge amounts, recent scientific assessments of climate change have all suggested that cutting emissions alone will not be enough to keep global temperatures from rising more than 1.5 or 2 degrees C. The Intergovernmental Panel on Climate Change […]
We could be on the verge of triggering a series of cascading tipping points that result in the planet warming 4 or 5°C hotter than the pre-industrial benchmark. That, at least, is the view of a group of 16 climate scientists, who have spelled out a scenario in which sea levels would be 10 to 60 metres higher […]
The world has seriously underestimated the amount of heat soaked up by our oceans over the past 25 years, researchers say. Their study suggests that the seas have absorbed 60% more than previously thought. They say it means the Earth is more sensitive to fossil fuel emissions than estimated. This could make it much more […]
The immensity of a program to reforest large swaths of the Amazon is hard to conceive — it aims to plant millions of trees over a remote area of Brazil roughly the size of Pennsylvania. If that wasn’t a big enough challenge, there’s also the threat seedlings face from dry spells, non-native plants and the […]
Last week, Prime Minister Justin Trudeau announced that under the Greenhouse Gas Pollution Pricing Act, Canada will implement a revenue-neutral carbon tax starting in 2019, fulfilling a campaign pledge he made in 2015. The federal carbon pollution price will start low at $20 per ton in 2019, rising at $10 per ton per year until […]
Some corals that live in the Caribbean could adapt to new climatic conditions, says a scientific study of the Smithsonian Tropical Research Institute (STRI), based in Panama, released Friday. According to the report, STRI scientists believe that corals Orbicella group “will continue to adapt to future climate change due to its high genetic diversity”. “Having […]
THE consequences of colonialism and imperialism, in all their forms and across all their epochs, defy our imagination. Unspeakable cruelties were inflicted, their scars and agonies are unspeakable. Colonialism was, and remains, a wholesale destruction of memory. Lands, the sources of identity, stolen. Languages, ripped from mouths. The collective loss to humanity was incalculable, as […]
Global average sea-level could rise by nearly 8 feet by 2100 and 50 feet by 2300 if greenhouse gas emissions remain high and humanity proves unlucky, according to a review of sea-level change and projections by Rutgers and other scientists. Since the start of the century, global average sea-level has risen by about 0.2 feet. […]
Climate change has had an adverse effect on pollinators. It has changed the distribution of many pollinating butterflies, bumblebees and other highly plant-dependent pollinators. These species pose a serious threat to the food supply chain worldwide. “When global warming occurs in different periods of the past two million years, the Earth takes about 5,000 years […]
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