Know better. Do better.

Since it was set up in 1988, the U.N.'s prestigious panel of climate scientists has been led by men - a Swede, an Anglo-American, an Indian and a South Korean.

That 35-year all-male run may end this week when governments pick a new chair for the Intergovernmental Panel on Climate Change (IPCC) at a meeting in Nairobi from July 25-28.

Two women - respected IPCC veterans Thelma Krug of Brazil and Debra Roberts of South Africa - are vying to win the votes of 195 governments. They would respectively be the first chair from South America or Africa.

A win for a woman might help put the spotlight more firmly on developing nations and gender when the IPCC works out its next mammoth assessment of climate change, due to be published towards the end of this decade.

Both the men candidates, Jim Skea of Britain and Jean-Pascal van Ypersele of Belgium, say they will promote women in climate science if they win. So women seem guaranteed a bigger role than their 30% share of IPCC authors in recent years.

But IPCC voting is notoriously hard to forecast - current chair Hoesung Lee, who beat van Ypersele in a runoff in 2015, was widely viewed as an outsider.

"It impossible to predict. It's not like the Eurovision song contest," one scientist said, referring to the song-fest in which nations often favour their neighbours.

Over the years, IPCC chairs have been generous in talking with me - starting at a conference in Moscow in 2002 when founding chair Bert Bolin of Sweden was dismayed that President Vladimir Putin gave a speech musing that climate change might benefit Russia.

"Maybe it would be good and we could spend less on fur coats and other warm things," Putin said. Bolin remarked ruefully: "We still have a lot of people to convince."

The hundreds of scientists who work with the IPCC - for free, alongside their day jobs - will study the physics of climate science, the worsening impacts of warming like record heatwaves, and solutions led by shifting away from fossil fuels.

That includes how we can best continue to grow our food as weather patterns become more extreme and the global population rises.

In Indonesia, the government wants to ensure food security with large-scale plantations known as "food estates", growing crops including cassava, rice and corn.

But it's falling short - Michael Taylor visited Borneo where a forest was cleared for one such food estate, exposing what he describes as "a barren and eerie landscape that resembles the surface of the moon".

"Putting a cassava plantation in the middle of the jungle is not needed for security," said Claudia Ringler, director of natural resources and resilience at the International Food Policy Research Network.

Michael's article about cassava kicks off a Context series called "Rerooted", about the future of food on a warming planet. Look out for more - on subjects ranging from seaweed to millet - in coming months.

The IPCC, meanwhile, has said that coal use will have to be phased out entirely by 2050 - unless new technologies emerge to clean up emissions - to limit global warming to 1.5 degrees Celsius above pre-industrial times.

Even in India, which is ramping up coal output to meet rising energy demand, banks are reluctant to finance newly auctioned mines because of the long-term risks that no one will want coal-generated electricity.

Many other mines are awaiting finance as banks balk at climate and legal risks, as reported by Context's Roli Srivastava.

Some Indian entrepreneurs are embracing renewable energies, like flower farmer Shrivraj Nishad, who is using solar panels to drive fans to dry out jasmine, rose and blue pea to make floral teas.

Our correspondent Bhasker Tripathi visited his micro-business in a village by the Ganges river in northern India.

Enjoy the week and please get in touch with ideas!

Alister