India’s 2026 monsoon ended with a significant rainfall deficit, yet intense downpours continued to cause concern. The changing monsoon pattern raises questions about floods, landslides and how the country prepares for extreme weather. India’s southwest monsoon ended in 2026 with 13% less rainfall than normal, according to the analysis by Climate Trends. Yet a shortage of rain over the season does not mean that every part of the country remained dry. Some places experienced heavy downpours even as others faced long periods without enough rain.

This is one of the challenges of a changing monsoon. Rain may fall heavily within a few hours and then disappear for days or weeks. Such a pattern can leave farmers struggling with dry soil while exposing other areas to sudden floods and landslides. The important question is not simply how much rain India receives each year. It is also how quickly the rain falls, where it falls and how prepared communities are to deal with it.

Less Rain Can Still Mean Floods

Monsoon rainfall is usually measured by comparing the total amount received during the season with the long-term average. This helps scientists understand whether a season has been wetter or drier than normal. But the total does not reveal how the rain was spread across the four months.

Imagine a district that receives most of its seasonal rainfall in just a few days. The total may look reasonable, but the heavy downpours could flood roads, damage homes and wash away crops. The same district could then face several weeks without rain, leaving its fields dry.

Research shows that rainfall patterns have changed in several parts of India. A study published in npj Climate and Atmospheric Science in 2024 found that short periods of heavy rain had become more frequent in central India in recent decades. It also found an increase in longer spells of heavy rain along the northern west coast. The changes were not the same everywhere, with some regions showing different trends. These findings show why seasonal rainfall figures alone cannot explain the risks people face.

The 2026 monsoon analysis by Climate Trends also points to changes in the way weather systems move across India. Mahesh Palawat, vice-president of meteorology and climate change at Skymet Weather, said low-pressure systems were spending more time over land while retaining their strength. He linked this behaviour to an increase in extreme rainfall events and cloudburst-like conditions. Understanding these changes is important because the effects of a monsoon depend partly on when and where the rain arrives.

Changing Monsoon: Are Cloudbursts Becoming More Common?

The word cloudburst is often used to describe any sudden spell of very heavy rain. However, it has a specific meaning in weather science. The India Meteorological Department defines a cloudburst as rainfall of 100 millimetres or more within one hour over a small area. Such a large amount of rain falling in a short time can quickly flood low-lying areas and trigger landslides, particularly in mountainous regions.

Not every flood or heavy downpour is a cloudburst. Flooding can also happen when rain continues for several hours, rivers overflow or drainage systems fail to carry away the water. Identifying a cloudburst requires rainfall measurements that confirm how much rain fell and how quickly it arrived.

Forecasting these events is difficult because they affect relatively small areas. A weather forecast may warn of heavy rain across a district without identifying the exact village or hillside that will receive the most intense rainfall. Research has found changes in extreme rainfall in parts of India, but this does not establish that cloudbursts are becoming more frequent throughout the country. More detailed records are needed to determine whether the frequency of cloudbursts themselves has increased.

The broader concern is that intense rainfall can cause serious damage, especially where people and infrastructure are exposed to floods and landslides.

How Climate Change Adds to the Risk

A warmer atmosphere can hold more moisture. When weather conditions allow that moisture to form rain, it can contribute to heavier downpours. Climate change does not cause every extreme rainfall event, and the amount of rain produced also depends on wind patterns, local geography and other weather conditions.

The developing El Niño is another factor to watch. This natural climate phenomenon involves warmer-than-usual sea surface temperatures in the tropical Pacific Ocean and can influence India’s monsoon and temperatures. Its effects vary from one event to another.

In the 2026 Climate Trends analysis, climate scientist Roxy Mathew Koll of the Indian Institute of Tropical Meteorology said global warming raises background temperatures and can intensify some of El Niño’s effects. He also highlighted how changes in land use, including deforestation, can worsen local impacts.

Ground Matters as much as the Weather

In hilly areas, heavy rain can soak the soil and make slopes unstable. Cutting into hillsides, removing vegetation and building on vulnerable slopes can increase the danger. When large amounts of rain arrive in a short period, water can rush downhill, carrying soil, rocks and debris with it.

Cities face a different problem. Roads, buildings and paved surfaces prevent much of the rainwater from soaking into the ground. If drains are blocked or too small to carry the water, streets can flood quickly. Building over wetlands and natural waterways also reduces the space available for excess water to flow or collect safely.

These activities do not create a cloudburst. They can, however, make its effects more destructive. Kerala offers an important example. The state recorded a 28% monsoon rainfall deficit in 2026, according to the Climate Trends analysis. Yet its steep Western Ghats slopes, rivers and densely populated areas remain exposed to the dangers of intense rainfall.

A season with less rain overall can still include localised downpours capable of causing serious damage. A rainfall deficit does not remove the risk of floods or landslides.

Beginning with Better warnings

Weather forecasts can help people prepare for heavy rain, but warnings alone cannot prevent disasters. Their effectiveness depends on whether people receive them in time, understand the danger and have a safe place to go.

India needs more reliable rainfall monitoring, particularly in mountain districts, landslide-prone areas and cities that frequently experience flooding. Automatic rain gauges and weather radars can help authorities track how much rain is falling and identify dangerous conditions. These systems also need regular maintenance and timely sharing of information.

Warnings must be useful at the local level. Telling residents that heavy rain is expected across a district may not be enough for people living beside a stream or below an unstable hillside. Local authorities need maps showing which settlements face the greatest risks, along with clear evacuation routes, shelters and plans for moving people to safety.

The way land is used also needs attention. Construction in flood-prone areas and on unstable slopes can expose more people to danger. Protecting wetlands, keeping natural drainage channels clear and preserving vegetation where it helps stabilise slopes can reduce some of the damage caused by heavy rain.

Infrastructure must be able to handle intense downpours. Drains, culverts and bridges need to be assessed against local rainfall conditions, while buildings and roads in vulnerable areas require appropriate flood and slope-risk assessments. Better planning can reduce the likelihood that heavy rain will turn into a disaster.

Preparing for dry spells is equally important. Rainwater harvesting, groundwater management and better soil care can help communities cope when rainfall becomes irregular. Farmers can also improve their resilience by choosing suitable crops and practices that require less water, depending on local conditions.

Planning for Both Floods and Droughts

India depends on the monsoon for farming, drinking water and replenishing rivers and reservoirs. But the seasonal total does not tell the whole story when rainfall is unevenly distributed.

Long dry spells can reduce soil moisture and put pressure on water supplies. Intense downpours can overwhelm drainage systems, damage crops and trigger landslides. Both risks can occur within the same monsoon season. The evidence supports closer monitoring of extreme rainfall and better preparation for its consequences. It does not yet justify claiming that cloudbursts are increasing everywhere in India.

Preparing for this changing pattern requires better weather observations, warnings that reach vulnerable communities, safer construction and protection of natural drainage systems. Water management and agriculture must also account for the possibility of long gaps between rain spells.

No forecasting system can prevent every extreme weather event. But better preparation can help people respond sooner and reduce the damage when intense rain arrives. The challenge is to prepare for the rain India receives, rather than rely only on how much rain the monsoon is expected to bring.

Bees are an attractive species to capture on your mobile phone. They may fit well into the aesthetic imagery of our habitats. But recent studies warn that, in the near future, it might become more convenient to create an AI image of a bee than to spot one in our environment.

There are around 20,400 recorded species of bees in the world. More than 90% do not live in hives or produce honey. This percentage is even higher in India, where, of the approximately 700 bee species, only five are social bees that live in hives and produce honey. The rest are “solitary” bees, with no social hierarchy. These bees live alone, forage and fend for themselves. Moreover, they play an important role in our world.

A new study has reported alarming findings about the fertility traits of these solitary bees. Titled “Lasting impacts of sublethal prepupal heatwaves on fertility-related traits of the solitary bee Osmia bicornis,” the study reveals that simulated sublethal heatwaves during the prepupal stage alter fertility-related traits in solitary bees.

The study investigated the effects of a field-realistic, three-day fluctuating heatwave regime, with temperatures below 40°C and below the critical thermal maximum (CTmax) for this species, replicating the temperature conditions experienced in the UK during July 2022. After the bees overwintered following juvenile exposure, researchers assessed male sperm and female oocytes to examine the effects on reproductive traits.

The study found that, although there was no direct effect on survival to adulthood, male sperm counts were reduced by 33% and sperm motility by 53%, while sperm length was shortened by 17%. In females, oocyte production was reduced by 15%, along with a 17% reduction in terminal oocyte volume.

In bees and many other insect species, testicular development and spermatogenesis usually begin during the prepupal and pupal phases, when the heat stress regime was applied. This period has been found to be thermally sensitive, with heat stress interfering with normal reproductive development. The heatwave simulated in the study may therefore have impaired testicular development and initial sperm production, reducing sperm numbers in adult bees despite the months of overwintering between exposure and assessment.

Reductions in sperm numbers and quality may affect fertilization. Previous research has found that elevated temperatures of 29°C led to decreased sperm abundance, reducing egg fertilization rates and embryo development.

Although this experimental approach does not allow for a detailed exploration of thermal thresholds or breakpoints, it provides valuable insights into the potential biological consequences of ecologically realistic, fluctuating heat stress, as experienced during heatwaves in nature.

Solitary bees are crucial to the pollination of several crops, including cucurbits, blueberries, cranberries, tomatoes, eggplants, apples, plums and almonds, as well as various lentils and other crops. These bees are efficient pollinators because they carry dry pollen across their bodies, potentially making them more effective than honeybees for certain crops.

This is not an isolated area of research. Another study published in 2023 also examined the damaging effects of heat on sperm production in bees, focusing on bumblebees of the genus Bombus.The study found that exposing whole male bumblebees to 4°C for 85 minutes, isolated seminal vesicles to 4°C for 85 minutes ,and whole males to 4°C for 48 hours did not significantly affect sperm viability.

However, after 85 minutes at 45°C, males showed significantly reduced sperm viability. This suggests that short-term heatwaves below the critical thermal maximum could substantially reduce male bumblebee fertility, with potential population-level consequences.

The thermal tolerance of worker bumblebees is relatively high, with a CTmax of approximately 48–55°C, making it unlikely that they would experience these temperatures under ordinary conditions, even with climate warming. However, the thermal tolerance of whole organisms often exceeds that of their reproductive cells. Many insects can be sterilised by exposure to temperatures well below their upper thermal tolerance.

Why Should This Matter?

Pollination, a crucial process for maintaining the planet’s biodiversity and food security, is primarily driven by bees and other insect pollinators.

In agricultural systems, pollinators are essential for producing a wide range of crops, including orchard fruits, horticultural crops and forage, as well as seeds for root and fibre crops. Pollinators contribute to approximately 35% of global crop production by volume, enhancing the yields of 87 of the 115 major food crops and numerous medicinal plants.(FOA data)

Bees pollinating on a flower.Image credit:Pexels

The benefits of pollination extend beyond improving the quantity and quality of food production. Pollinator-dependent plants contribute to the production of many micronutrients and vitamins that are important for human nutrition and dietary diversity.

The Food and Agriculture Organization (FAO) also points out that more than 80% of wild flowering plant species are pollinated by animals, mostly insects.

Bees and other pollinators face significant threats, with current extinction rates estimated to be 100 to 1,000 times higher than natural background rates due to human activities. According to the International Union for Conservation of Nature (IUCN), national Red List assessments indicate that around 40% of bee species assessed in some regions are at risk of extinction, while 16.5% of vertebrate pollinators are at risk of global extinction.

Habitat loss and fragmentation, intensive farming, monocultures, pesticides, pests, diseases and climate change-related impacts, such as temperature extremes and shifts in flowering times, are major contributing factors to pollinator decline. These pressures can disrupt the balance between flowering plants and their pollinators.

To establish whether the observed reproductive changes translate into fewer offspring, declining populations or substantially reduced pollination under real-world conditions, further research and evidence are needed. However, habitat fragmentation, climate change, extreme heat and biodiversity loss are already placing increasing pressure on ecosystems. Understanding how these stressors affect the reproductive capacity of bees is therefore essential to assessing the potential long-term consequences for biodiversity and food security.

Disagreement over the publication schedule of the world’s leading climate assessment has exposed a growing tension between the urgency of climate action and the need for equitable scientific participation.

The world’s leading climate science body is approaching a critical decision over when to publish its next major assessment, raising concerns that governments could enter the next phase of global climate negotiations without a comprehensive review of the latest climate science.

The Intergovernmental Panel on Climate Change (IPCC) has repeatedly failed to reach agreement on a timeline for its Seventh Assessment Report (AR7), with disagreements among member countries continuing for nearly three years. The dispute comes ahead of the second Global Stocktake under the Paris Agreement, scheduled to conclude in 2028, when countries will assess collective progress towards addressing climate change.

A Reuters report published on October 9 reported that the deadlock could complicate international climate negotiations. The disagreement centres on whether the IPCC should complete its three main working-group assessments in time to inform the 2028 process or allow additional time for drafting, review and approval.

The IPCC’s assessments inform international climate agreements and national decisions on emissions reduction, adaptation and climate finance. A delay could therefore affect not only when scientific findings become available, but also how governments use them to shape their next climate commitments.

A clash between urgency and equitable participation

The disagreement has exposed differences between countries over the pace of climate action and the conditions required to produce credible scientific assessments.

More than 30 countries, including European nations and small-island states, have supported efforts to complete the assessments in time for the 2028 Global Stocktake. They argue that governments need the most recent scientific evidence when evaluating whether existing climate commitments are sufficient.

Other countries, including India, China, Russia and Saudi Arabia, have called for more time. They argue that a compressed timetable could undermine the ability of researchers and governments in developing countries to review the reports and participate meaningfully in the assessment process.

These concerns matter because IPCC assessments involve extensive scientific drafting, expert review and government scrutiny. Researchers from countries with fewer resources may face constraints in funding, research infrastructure and the time available to contribute to a process that relies heavily on scientific expertise.

Electric vehicle charging point in an urban city.Representational image.Image credit:Pexels

However, the disagreement has also prompted concerns that a delay could weaken the connection between climate science and international decision-making. The competing positions raise a fundamental question: how can the IPCC ensure both timely assessments and fair participation without compromising scientific quality?

Carbon Brief reported in April that governments had failed to agree on the timeline across five consecutive IPCC sessions. The IPCC chair, Jim Skea, said the impasse had produced little progress on resolving the issue, although work on the assessments was continuing.

The disagreement does not mean that climate research has stopped. Scientists are continuing to draft the working-group reports, but uncertainty over the final schedule creates difficulties for planning reviews, meetings and the wider assessment process.

Why the 2028 deadline matters

The Global Stocktake is a central mechanism of the Paris Agreement. It evaluates how far countries have progressed towards the agreement’s goals and informs subsequent national climate plans.

The second stocktake is due to conclude in 2028 at COP33. If the IPCC’s working-group reports are not ready in time, negotiators could have to rely on existing assessments alongside other available scientific evidence.

The IPCC’s Seventh Assessment Report covers three broad areas: the physical science of climate change; climate impacts, adaptation and vulnerability; and options for reducing greenhouse gas emissions. Together, these assessments help governments understand the scale of climate risks and the choices available to address them.

The upcoming IPCC-65 meeting in Addis Ababa, Ethiopia, scheduled for October 12–16, is therefore an important opportunity for governments to seek agreement on the timetable. The outcome could determine whether the assessment process remains aligned with the 2028 stocktake.

For India and other developing countries, the debate has implications beyond scheduling. Their participation in climate assessments can influence how regional vulnerabilities, development priorities and adaptation needs are represented in the scientific evidence used by policymakers.

The challenge for the IPCC is to reconcile two objectives: delivering scientific findings when governments need them and ensuring that the process includes researchers from across regions and income levels.

As the meeting approaches, the question is no longer simply when the next climate assessment will be published. It is whether the international community can establish a timeline that preserves scientific credibility, broad participation and the usefulness of climate evidence for decisions that will shape the planet’s warming future.