Although regulations have curbed some of these local risks, climate change remains a big threat. In 2014 a spike in water temperatures led the Florida corals to bleach – when a reef expels its symbiotic algae under heat stress, whitens and potentially dies. It happened again in 2015, as a prolonged global bleaching event gripped […]
However, buying semen and drugs is expensive. This means that keeping cattle farming economically viable is a very fine balance. As an example, one study last year showed that while the volume of milk produced by European dairy farms had increased in recent years, profit margins had fallen as production costs – ranging from labour […]
Ralph Keeling, professor at the Scripps Institution of Oceanography in La Jolla, California, has estimated that global fossil fuel use will have to decline by 10% for a full year to show up CO2 concentrations. It would be a difference of only about 0.5 parts per million according to Climate Home, an independent climate news […]
While Earth may be covered in water, freshwater — the kind we care about — actually only represents 2.5 per cent of that. And almost 99 per cent of fresh water it is trapped in hard to reach places like glaciers and snowfields. In the end, less than one per cent of the planet’s water […]
“For me, the interesting question then is what happens in these major river basins in the years when the rains fail? Without the ice reserve there in the mountains to top the rivers up through the melt season, droughts will be harsher on those living downstream.
The documentary sees Hawking and his former student Christophe Galfard explore the latest advances in astronomy, biology and rocket technology that will make it possible for humans to live on Mars.
Hoegh-Guldberg says manually replanting corals is uneconomic at scale but there’s merit in helping the dispersal of coral larvae, pointing to a technique being developed by a scientist at Southern Cross University that captures millions of larvae in floating pools.
At Townsville’s tropical marine research centre, scientists from the Australian Institute of Marine Science (Aims) are looking at how so-called super corals (corals that can resist increased water temperatures) could be used to save the reefs. About 25 strains of coral are being crossbred with the same or different species. The research is being carried […]
Despite its importance, the Nile is still heavily polluted by waste water and rubbish poured directly into it, as well as agricultural runoff and industrial waste, with consequences for biodiversity, especially fishing and human health, experts say.
But, in 2015, he made the still-quite-mystifying decision to give up on enjoying widespread goodwill in the legal world to become a politician. Shortly after he won a seat in parliament that year, the veteran far-left campaigner Jeremy Corbyn was unexpectedly voted in as Labour leader and went on to drive the party through what […]