The Group of Seven (G7) nations have agreed to participate in a worldwide vaccination plan “to halt the coronavirus pandemic.” It comes amid concerns among G7 leaders that impoverished countries are being left out in the global jab drive. They also want a global tax as they seek to raise their contributions to meet an overdue spending pledge of 100 billion dollars a year by rich countries to help poorer ones cut carbon emissions. And, the leaders made clear they will be seeking to rival China in reaching out to lower and middle-income countries.