Author: BBC World Service

The appearance of Covid -19 in Italy and Iran surprised many this week. As the virus continues to spread we look at ways to contain it.

Australia’s fires have burnt around 20 percent of the countries woodlands, what are the implications for the recovery of those ecosystems?

And what is the link between the world’s super rich and deforestation? Unsurprisingly it’s money.

And we hear about the unexpected cooling effects of hydroelectric dams.

Weather: wet, dry, cold, hot, sunny, windy or downright weird - there’s nothing quite like it as a conversation starter, from Austin to Jakarta. And judging from the large volume of emails about all things meteorological in the CrowdScience inbox, there’s plenty to talk about.

What’s the weirdest weather on Earth, and how big a chance is there of it happening? Why does it always seem to rain on the days when we’re not working? And – conversely – is there any way we could make it rain when and where we need it to? Presenter Anand Jagatia finds out the answers to these questions and more by bringing together a panel of experts under the CrowdScience umbrella: Prof Liz Bentley, Royal Meteorological Society; Dr Anthony Rea, World Meteorological Organization, and Dr Rebecca Buccholz, National Centre for Atmospheric Research.

(Image: Tourists wearing masks tour outside the Coliseum in Rome. Credit: Getty Images)

Weather: wet, dry, cold, hot, sunny, windy or downright weird - there’s nothing quite like it as a conversation starter, from Austin to Jakarta. And judging from the large volume of emails about all things meteorological in the CrowdScience inbox, there’s plenty to talk about. What’s the weirdest weather on Earth, and how big a chance is there of it happening? Why does it always seem to rain on the days when we’re not working? And – conversely – is there any way we could make it rain when and where we need it to? Presenter Anand Jagatia finds out the answers to these questions and more by bringing together a panel of experts under the CrowdScience umbrella: Prof Liz Bentley, Royal Meteorological Society; Dr Anthony Rea, World Meteorological Organization, and Dr Rebecca Buccholz, National Centre for Atmospheric Research. Presented by Anand Jagatia. Produced by Jen Whyntie for the BBC World Service

(Photo: Lenticular Cloud. Credit: Getty Images)

The appearance of Covid -19 in Italy and Iran surprised many this week. As the virus continues to spread we look at ways to contain it.

Australia’s fires have burnt around 20 percent of the countries woodlands, what are the implications for the recovery of those ecosystems?

And what is the link between the world’s super rich and deforestation? Unsurprisingly it’s money.

And we hear about the unexpected cooling effects of hydroelectric dams.

(Image: Tourists wearing masks tour outside the Coliseum in Rome. Credit: Getty Images)

Presenter: Roland Pease Producer Julian Siddle.

The appearance of Covid -19 in Italy and Iran surprised many this week. As the virus continues to spread we look at ways to contain it.

Australia’s fires have burnt around 20 percent of the countries woodlands, what are the implications for the recovery of those ecosystems?

And what is the link between the world’s super rich and deforestation? Unsurprisingly it’s money.

And we hear about the unexpected cooling effects of hydroelectric dams.

(Image: Tourists wearing masks tour outside the Coliseum in Rome. Credit: Getty Images)

Presenter: Roland Pease Producer Julian Siddle.

Roland Pease reports from the American Association for the Advancement of Science’s annual meeting in Seattle. At the UK Research and Innovation’s stand in the exhibition hall, he’s joined by three scientists to discuss monitoring the Coronavirus outbreak, the locusts devastating crops in East Africa and the ever increasing amount of space junk orbiting the Earth.

Professor Jeffrey Shaman of the Mailman School of Public Health at Columbia University talks about how he is modelling the movement of Covid-19 around China and beyond.

Dr Catherine Nakalembe, of the University of Maryland and East Africa Lead for NASA Harvest explains how she uses data collected by satellites to find out where crops are thriving and where they are not. She also talks about how this technology can alert countries to approaching locust swarms.

And Professor Moriba Jah of University of Texas at Austin, tells Roland why he’s concerned about the amount of space junk that’s orbiting the earth and why so little is being done about controlling satellite launch and disposal.

A lovely day out in the countryside can be blighted when swarms of midges or mosquitos invite themselves to the party. A CrowdScience listener in New Zealand has noticed that, when sand-flies come a-biting, she and her daughter are targeted, while her husband and other daughter escape unharmed. She wants to know why some, but not all of her family become bait for insect bites. CrowdScience delves into a world of smells, called semiochemistry, which explores the aromas one animal uses to attract or repel another. Does our attractiveness as a blood meal to insects come down to what we wear, what we’ve eaten or is it all in our genes? Host Marnie Chesterton discards the DEET and bravely offers herself up as a meal for mozzies, in a quest for answers.

(Image: Artist response to NASA Harvest discussion at AAAS Credit: Lorenzo Palloni)

A lovely day out in the countryside can be blighted when swarms of midges or mosquitos invite themselves to the party. A CrowdScience listener in New Zealand has noticed that, when sand-flies come a-biting, she and her daughter are targeted, while her husband and other daughter escape unharmed. She wants to know why some, but not all of her family become bait for insect bites. CrowdScience delves into a world of smells, called semiochemistry, which explores the aromas one animal uses to attract or repel another. Does our attractiveness as a blood meal to insects come down to what we wear, what we’ve eaten or is it all in our genes? Host Marnie Chesterton discards the DEET and bravely offers herself up as a meal for mozzies, in a quest for answers.

(Photo:Mosquito on skin. Credit: Getty Images)

Researchers at the London School of Hygiene and Tropical medicine have developed an online map which presents the latest information on the spread of CoVid-19 and allows anyone to follow the outbreak and compare this data with the spread of Ebola and SARS. See the weblink from this page to try it for yourself.

And the coming together of microbiology and big data science has led to the development of a portable device able to spot antibiotic resistant bacteria. This should help with more precise drug targeting and potentially save lives.

We also look at how social science is helping to improve the health of people reliant on woodstoves for cooking, and we unearth a huge impact crater hidden in plain sight.

Cancer is the second leading cause of death in the world. Many of us will at some point in our lives be confronted with the disease – either by falling ill ourselves or through a family member or friend. For CrowdScience presenter Marnie Chesterton, the diagnosis would change her life.

The range of cancer symptoms and mortality rates vary considerably. Not all cancers are fatal and in some cases, cancer ends up more like a chronic debilitating disease, resulting in patients eventually dying from some other condition. This has got listener Gill in Scotland wondering – why do we call all cancers, cancer? And when did doctors first realise that all cancers are part of the same problem?

First described by the Egyptians thousands of years ago and later coined by the Greek physician Hippocrates as “karninos”, the Greek word for “crab”, cancer is ominously absent from medical literature until the late 19th century. Throughout history it has puzzled, infuriated and enticed doctors and scientists to push medical science to its breaking point. Archaeologists have recently discovered that the ancient Egyptians had a term for cancer and that remedies they used then contain compounds that are found in modern chemotherapy.

As we uncover the science and history of cancer, presenter Marnie Chesterton takes us on a journey through her own experience of living with and beyond the diagnosis and we examine the promise of future treatments.

(Image:Getty Images)