African Union leaders are meeting in Equatorial Guinea. Inflation and war in Ukraine are increasing food prices across Africa. Four AU member states are suspended because of coups.

We take a look at how the war in Ukraine is sending the price of wheat skyrocketing and how mines along the Black Sea could keep grain shipments stuck for six months. We also look at reactions to Matthew McConaughey's speech about gun violence – an emotional appeal using a murdered child's green Converses. We also dive into Disney weddings, from the company's apology over a viral video to choosing Mickey and Minnie over catering.

Russia has effectively agreed to a "corridor" to export grain from Ukraine but there are many sticking points before Kyiv can come on board. Meanwhile, the global wheat shortage is getting more and more urgent.

To stay under 1.5C, according to the IPCC, means that carbon emissions from everything that we do, buy, use or eat must peak by 2025, and tumble rapidly after that, reaching net-zero by the middle of this century.

The word sand usually conjures up images of a holiday on the beach. But the fine grains also happen to be a precious commodity. Humans extract 50 billion tonnes of sand and gravel every year, making it the second most exploited resource on the planet. Can the world keep digging for more? The Down to Earth team investigates.

Amid a growing food crisis sparked by disrupted grain exports from Ukraine and Russia, the EU's ambassador to Ukraine Matti Maasikas told FRANCE 24 that exports by land more than doubled between April and May, from 600,000 tonnes to 1.5 million tonnes.

The conflict has cut off supplies from Ukraine's ports, which once exported vast amounts of cooking oil as well as cereals such as maize and wheat. This has reduced the global supply and caused the price of alternatives to soar. Global food prices are almost 30% higher than the same time last year, according to the UN.

Egypt's Minister of International Cooperation, Rania A. Al-Mashat, granted an interview to FRANCE 24 in Ivory Coast's economic capital Abidjan. Although the war in Ukraine is threatening Egypt's food security, the minister believes that "pre-emptive action" undertaken by Cairo in the past few years will help "mitigate" the impact of a possible wheat shortage. Al-Mashat also called for the COP27 climate summit in the Egyptian resort of Sharm el-Sheikh in November to be one turning of "pledges" into "implementation".

Much of the UK has been crippled by the largest rail strike in decades. Some 40,000 workers participated in Tuesday's walkout, calling for higher wages to deal with the spiraling cost of living. Experts say the disruptions will weigh on economic growth. Also in the show: EasyJet is on the frontline of the aviation industry's staff shortages, and businesses in Las Vegas will continue performing Elvis-themed weddings, after reaching a deal with the late singer's estate.

The billionaire was named prime minister for the fourth time and asked to form a government to save the country from financial collapse. He urged fractious politicians to set aside differences to secure an IMF deal.

German airline Lufthansa has said it is canceling over 2,000 additional flights at its Frankfurt and Munich hubs due to staff shortages. Its low-cost subsidiary, Eurowings, is also expected to cancel flights.

The European Commission is set to present its strategy for a united effort to ensure gas supplies for the coming winter. Meanwhile, the European Council has adopted a plan to ensure gas storage capacity is filled.