World

Scientists have taken a major step towards solving one of the biggest challenges facing green hydrogen: the scarcity of iridium.

The results highlight not only the effectiveness of emergency vaccination, but also the critical role of preparedness and speed in response to emerging threats.

The past year saw 14.3 million “zero-dose” children who never received a single dose of any vaccine, WHO and UNICEF said in a joint press release on Tuesday.

As an emergency backup, for cases where patients may not realize that their blood sugar is dropping to dangerous levels, MIT engineers have designed an implantable reservoir that can remain under the skin and be triggered to release glucagon when blood sugar levels get too low.

Drawing on a year-long consultation process with civil society, journalists, human rights defenders, electoral officials, and social media companies, Khan identified three intersecting trends that are accelerating the crisis.

Debt service payments by developing countries have soared by $74 billion in a single year, from $847 billion to $921 billion.

There have been downward pressures on US financial asset prices as reflected in equity market volatility, a weakening dollar and higher long-term 30-year government bond yields.

While some countries are expected to end malaria by 2030, major challenges remain to eliminate HIV/AIDs, tuberculosis, hepatitis B and neglected tropical diseases, the study found, with new HIV/AIDS cases increasing steadily in the past decade.