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5 articles from Guardian Unlimited Science

Climate rebels open new fronts across capital as protests escalate

Activists block trade at Billingsgate fish market and target headquarters of energy company Shell to ‘raise awareness’Climate protesters on Saturday intensified efforts to disrupt life in London, and targeted sites including Billingsgate fish market and Shell’s headquarters. They said police took at least 28 of their supporters into custody. That number means that more than 1,200 Extinction...

My tears as a junior doctor were a ‘flaw’ that, in psychiatry, became my greatest strength

I burnt out as a GP but in mental health I could take time with patients and, at last, make a difference“If you’re going to reject me, then reject me,” I said. I was deep in the bowels of Leicester University, being interviewed for a place at medical school. I was 35, a fact the learned professor interviewing me returned to again and again. How would I cope with the workload? Would the four...

New evidence shows how asteroid dust cloud may have sparked new life on Earth 470m years ago

Isotope found in seabed sediment points to clash of solar bodies near Mars, study suggestsAstronomers have discovered intriguing evidence that an asteroid break-up blanketed Earth with dust millions of years ago. The event dramatically cooled the planet and triggered an ice age that was followed by major increases in numbers of new animal species.The work, led by Birger Schmitz of Lund University...

'If they don't do it, we will': Greta Thunberg rallies climate strikers for long haul

At rally in Denver, Swedish activist again scolds leaders for ignoring science Young people must be prepared to strike for a long time for action on climate change and not back down, the Swedish climate activist Greta Thunberg has told a rally in Denver.Thunberg said she and fellow youth activists would not beg those in power to act because she expected leaders to keep ignoring them. Continue...

Flesh-eating ulcer's spread to new part of Australia worries infectious disease experts

Three cases of disease have emerged south of its usual catchment area in far-north QueenslandThe spread of a severe tissue-destroying ulcer once rare in Australia to a new geographic area in Queensland has infectious disease experts worried.The Buruli ulcer, also known as the Bairnsdale ulcer or Daintree ulcer, is an infection that eventually leads to an eruption of painful skin ulcers that fail...