Teacher absenteeism continues, despite several studies conducted and reasons identified. Can something be done? Another Teacher’s Day has come and gone. Like the ones before it, we have had the usual combination of speeches (New Delhi), awards (Mohali), “felicitations” (Mangalore), blood donations (Ulhasnagar), walkouts (Shillong), food poisonings (Mumbai), teacher thrashings (Malda) and black badges (Ludhiana). Barely a week later, we are back to the status quo. Sarvepalli Radhakrishnan, on whose birthday...

REGULARITY and repetition—of returning rains, of seasonal temperatures, of the cycles of life and death—are the essence of agriculture. So perhaps it is not surprising when events recur. In 2007-08, food prices soared. Mozambique and 30 poor countries endured food-price riots. Russia led a procession of grain exporters to restrict sales. And the world had to face up to changes in the pattern of food demand, reversing decades of declining...

Increasingly erratic rainfall patterns related to climate change pose a major threat to food security and economic growth, water experts have said, arguing for greater investment in water storage. In a report by the International Water Management Institute (IWMI), experts said Africa and Asia were likely to be hardest hit by unpredictable rainfall, and urged policymakers and farmers to try to find ways of diversifying sources of water. The IWMI...

IN A remote corner of Bahia state, in north-eastern Brazil, a vast new farm is springing out of the dry bush. Thirty years ago eucalyptus and pine were planted in this part of the cerrado (Brazil’s savannah). Native shrubs later reclaimed some of it. Now every field tells the story of a transformation. Some have been cut to a litter of tree stumps and scrub; on others, charcoal-makers have moved...

An international committee reviewing the "processes and procedures" of the UN's climate science panel is set to report on Monday. The Intergovernmental Panel on Climate Change (IPCC) has faced mounting pressure over errors in its last major assessment of climate science in 2007. The review was overseen by the Inter-Academy Council, which brings together bodies such as the UK's Royal Society. The findings are to be unveiled at a news conference in New...