By Ahunna Eziakonwa and Maxwell GomeraNEW YORK  —  World leaders have mounted a resolute response to the war in Ukraine, the consequences of which are being felt far beyond the warzone.

By Alexander Schallenberg and Phil TwyfordVIENNA/WELLINGTON  —  Austria and New Zealand may be far apart geographically, but we are connected by shared values and principles.

By Rushad Nanavatty and Sheila Aggarwal-KhanWASHINGTON, DC  —  Extreme heat is having its moment in the sun.

By Mariana Mazzucato and Alan DonnellyLONDON — This month, G-7 leaders will gather in Germany to discuss a litany of overlapping global crises, including the war in Ukraine, food insecurity, inflation, backlogged global supply chains, the pandemic response and climate change.

By Tijani Salami, Jane OtaiMINNA — In April, the beloved Nigerian gospel singer Osinachi Nwachukwu died at the hands of her husband.

By Alexander Müller, violet Shivutse and  Jes WeigeltBERLIN — The global food system is broken. Although it produces more than enough calories to feed everyone, up to 811 million people — more than 10 per cent of the world’s population — go to bed hungry each night.

By Jeffrey D. Sachs and Neil L. HarrisonNEW YORK  —  When US President Joe Biden asked the United States Intelligence Community (IC) to determine the origin of COVID-19, its conclusion was remarkably understated but nonetheless shocking.

By Phillip A. Sharp and Julien PatrisCAMBRIDGE  —  The COVID-19 pandemic has reshaped attitudes toward public health, fiscal policy, and the state’s role in the economy.

Phillip A. Sharp and julienPatrisCAMBRIDGE — The COVID-19 pandemic has reshaped attitudes towards public health, fiscal policy and the state’s role in the economy.