US scientists told the BBC that they could launch a new coronavirus vaccine in China before the end of the year.
The pharmaceutical company Inovio is one of the many research institutions that are urgently trying to develop a vaccine as cases continue to increase in China.
The BBC's global health correspondent, Tulip Mazumdar, entered his laboratory in San Diego.
Read more : Scientists are hurrying to develop vaccines
Glaciologists have called the Thwaites Glacier the "most important" glacier in the world, the "most risky" glacier and even the "apocalyptic" glacier.
Scientists from Great Britain and the USA are studying changes in glaciers as part of the Thwaites Glacier International Collaboration.
BBC chief environmental correspondent Justin Rowlatt visited the project.
"Snotsicle" - clearly unattractive amounts of frozen mucus - are just a few of the challenges facing science in a place as extreme as Antarctica.
Scientists fear a catastrophic collapse of the Thwaites glacier.
West Antarctic ice has a potential sea level rise of more than three meters, enough to flood many large cities around the world and drive hundreds of millions of people out of their homes.
The BBC's main environmental correspondent, Justin Rowlatt, has traveled with a team of scientists who are part of a US $ 50 million (£ 38 million) joint project between the United States and the United Kingdom.
But as he found out, doing science in one of the most extreme environments on earth is not easy.
Jemma Cox films
According to recent avant-garde tests, Takabuti, an Egyptian mummy that has been in the Ulster Museum since 1835, appears to have been killed by stab wounds in the back.
In addition, scientists believe that she can't even be Egyptian, since DNA tests have shown that she is genetically more similar to Europeans than modern Egyptians.
The results will be published on the 185th anniversary of their unpacking.
Actress Marion Cotillard traveled to Antarctica with Greenpeace to find out how climate change, plastic waste and industrial fishing are harming wildlife.
"As virgin as it sounds, even a remote place like this is affected by harmful human activities," he said.
During his trip he spoke to the Victoria Derbyshire program about the "big" environmental problem of the film industry.
Watch the Victoria Derbyshire program on BBC Two and the BBC News Channel from 10 a.m. to 11 a.m. GMT and learn more about our stories here.
Prince Charles warned business leaders that they must make the environment more affordable to combat the "impending catastrophe" of climate change.
At the World Economic Forum in Davos, Switzerland, he asked politicians and business leaders what added value added wealth was "if there was nothing you could do but watch the fire burn".
Charles used his speech to launch a new sustainable market initiative, a project designed to encourage the private sector to become more environmentally friendly.
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As temperatures drop in Florida, more and more iguanas fall to the ground.Prince Charles warned business leaders that they must make the environment more affordable to combat the "impending catastrophe" of climate change.
At the World Economic Forum in Davos, Switzerland, he asked politicians and business leaders what added value prosperity had "if all you could do was watch the fire burn".
Charles used his speech to launch a new sustainable markets initiative, a project designed to encourage the private sector to become more environmentally friendly.
A community in the Ivory Coast has partnered with UNICEF to turn waste into brick for schools.
Classrooms cost almost half the price of traditional building materials and can be built with a simple hammer. Since 2018, plastic waste has become 26 classrooms.
Video produced by Daniel South and Eric Biantuadi.
Listen to Newsday on the BBC iPlayer .
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The 17-year-old activist told world leaders that "playing with numbers" would not be enough.
President Donald Trump used his speech at the World Economic Forum to discuss the success of the US economy and criticized what his critics considered alarming.
In a search for activist Greta Thunberg and other climate protesters, Trump said: "We have to reject the eternal prophets of doom."
Read more: Trump denounces the "Agodores" climate at the World Economic Forum
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The Swedish climate activist and the US president gave very different speeches in Davos.
China is a country in the middle of a global struggle: to develop, but also to be green.
It currently uses as much coal as the rest of the world, but is also a global leader in wind and solar production. According to the International Energy Agency, China will account for 40% of the global expansion of renewable energies between 2019 and 2024.
As the economy slows, some coal mines are now reopening, and the country's prime minister, Li Keqiang, has called on energy officials to promote coal energy. So is China coal addicted?
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Bioluminescent algae from Jervis Bay, Australia, shine in a fascinating night display.China is a country in the middle of a global struggle: to develop, but also to be green.
It currently uses as much coal as the rest of the world, but is also a global leader in wind and solar production. According to the International Energy Agency, China will account for 40% of the global expansion of renewable energies between 2019 and 2024.
As the economy slows, some coal mines are now reopening, and the country's prime minister, Li Keqiang, has called on energy officials to promote coal energy. So is China coal addicted?
Naturalist Sir David Attenborough warned that "the time has come for the crisis".
In an interview with the BBC, the broadcaster said that growing awareness of the emergency should force governments to act.
The BBC "Our Planet Matters" series highlights climate issues throughout the year.
Several British cities want to become climate neutral by 2030 to combat climate change.
Glasgow, which will host an important United Nations summit on climate change in November 2020, is one of them .
However, reducing an entire city's carbon footprint to zero requires significant changes. So what can we do and how quickly?
BBC Laura Foster examines the city's challenges.
The 10 years to the end of 2019 have been confirmed as the hottest decade by three global agencies.
This year's climate change was associated with Australian forest fires, heavy rains in Indonesia and record temperatures in Europe. But what is climate change?
Rebecca Morelle, BBC Global Science correspondent, explains.
This video is part of Our Planet Matters, a special one-year series dealing with climate change.
Time-lapse images captured lightning bolts that swirled in dark clouds around the summit of the Taal volcano in the Philippines.
The volcano had spewed out a huge cloud of ash and evacuated thousands of people.
Authorities said the cloud of the Taal volcano soared into the sky.
Read more: Taal volcano: lava spits like a feared "dangerous eruption"
Here's a test question: What do the use of road navigation systems, global time consistency and the availability of accurate stock market data have in common? The answer is that everyone relies on working satellites. However, an increasing amount of environmentally harmful waste from space poses a risk to all of these services. For example, a Japanese company, Astroscale, was working on ways to remove space debris. The founder and CEO, Nobu Okada, explains.
Video by Adam Tyrrell and Pamela Parker
Here's a test question: What do the use of road navigation systems, global time consistency and the availability of accurate stock market data have in common? The answer is that everyone relies on working satellites. However, an increasing amount of environmentally harmful waste in space poses a risk to all of these services. For example, a Japanese company, Astroscale, was working on ways to remove space debris. The founder and CEO, Nobu Okada, explains.
Video by Adam Tyrrell and Pamela Parker
Here's a test question: What do the use of road navigation systems, global time consistency, and the availability of accurate stock market data have in common? The answer is that everyone relies on working satellites. However, an increasing amount of environmentally harmful waste from space poses a risk to all of these services. For example, a Japanese company, Astroscale, was working on ways to remove space debris. The founder and CEO, Nobu Okada, explains.
Video by Adam Tyrrell and Pamela Parker
A former Indian software analyst who is now an emerging star in the opera world has written a new "national anthem" for Mars.
Oscar Castellino was commissioned to give the Red Planet his own anthem for the United Kingdom's Mars Society to promote the idea that people who live there need their own musical identity.
