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  1. 'Save the males': Study suggests splitting turtle nests

    Video content

    Video caption: How reducing the temperature of nests can keep rebalance sex of newborn turtles

    A simple technique can reduce the temperature of nests and so keep the balance between male and female hatchlings closer to 50/50.

  2. Why are we still buying the world's most polluting car?

    Video content

    Video caption: Annual SUV emissions have risen to more than 700 megatonnes of CO2

    Annual emissions from one of the world's best-selling cars have risen to more than 700 megatonnes of CO2.

  3. Video content

    Video caption: Why has a walrus ended up in Wales?

    Is Wally the walrus really in west Wales looking for somewhere new for lunch?

  4. Video content

    Video caption: Trees planted by hospital treating Covid patients

    Staff from a Cardiff intensive care unit are offsetting the environmental impact of treating patients.

  5. Video content

    Video caption: Brazil: Vaccinating the Amazon against Covid

    The BBC follows healthcare workers in Brazil's Amazon region delivering vaccines to one of the most isolated parts of a vast country.

  6. Video content

    Video caption: SpaceX ISS mission: Night-time splashdown for four astronauts

    Four astronauts splash down off the coast of Florida after a six-month mission to the International Space Station.

  7. Video content

    Video caption: St Kilda: ‘There’s no better place to be in isolation’

    As lockdown restrictions began to ease, a conservationist from NI moved to a remote UK island.

  8. Video content

    Video caption: A mobile grocery store is delivering healthy food to Johannesburg's inner city residents.

    Inner city residents of Johannesburg in South Africa have been given access to a new kind of shopping experience: a zero-waste mobile grocery store.