From Down to Earth: India’s vicious cycle of crippling drought and then devastating floods, which happens every year, is getting a new normal. First, floods and droughts come together. Secondly, rainfall is not only variable but also extreme. There’s only one answer: obsessive attention to building millions and millions of connected and living water structures.
Floods in the time of drought are India’s new normal. Let us get this clear. Each year without fail, a vicious cycle of crippling drought and then devastating floods plays out before us. Sometimes this cycle gets so bad that it even makes it to the headlines. But the fact is that this cycle is getting a new normal. First, floods and droughts come together. Today, even as 40 per cent of the districts in India face prospects of drought, close to 25 per cent districts have had heavy rainfall of more than 100 mm in just a matter of hours. Secondly, the rainfall is not only variable but also extreme.
Chandigarh, a city of open parks, was recently submerged in water. It had deficient rainfall till August 21, and then it got 115 mm of rain in just 12 hours. It drowned. In other words, it got roughly 15 per cent of its annual monsoon rain in just a few hours. Bengaluru hardly had any rain and then it poured. It got 150 mm of rain in just about a day, which is close to 30 per cent of its annual monsoon rain. It is no wonder that the city drowned. Mount Abu got over half its annual monsoon rain in two days.
This is the double whammy I have discussed countless times in my articles. The fact is that on the one hand, we are getting our water management wrong—we are building in floodplains, destroying our waterbodies and filling up our water channels. On the other hand, climate change is beginning to show its impact on the monsoon. It is leading to more rain in a fewer number of rainy days, as scientists have predicted. We now see more rain and more extreme rain events.
This year, up to mid-August, data shows that India has had 16 extremely heavy rain events, defined as rainfall over 244 mm in a day, and 100 heavy rain events, defined as rainfall between 124 to 244 mm in a day. This means that rain will become a flood. Worse, in met records, the rain will be shown as normal, not recognising that it did not rain when it was most needed for sowing or that the rain came in just one downpour. It came and went. It brought no benefits. Only grief.
It is time we understood this reality. This means learning to cope with twin scenarios, all at once. This means being obsessive about how to mitigate floods and how to live with scarcity of water. But the good news is that doing one can help the other. But we need to stop debating, dithering or dawdling. We know what to do. And we have no time to lose—climate change will only increase with time as weather and rainfall will only get more variable, more extreme and more catastrophic.
Take floods. The media has reported that the government is considering—which can only be called a hare-brained scheme—desilting the massive Brahmaputra to control floods in Assam. This is not just unfeasible but an unnecessary distraction as it means we will lose more time. In Bihar, the government wants to do more of the same by building embankments along its rivers. This is when its own Kosi is perhaps the only river in the country, which is called both mother and witch. It comes down from the Himalayas; is known to bring vast quantities of silt; and, changes course with regular precision.
We know that all efforts to tie up the river by building embankments have not worked; the silt fills the river and the bed rises, and the water spills and seeps out across the region. This year’s floods in Bihar have already taken over 250 lives (conservative figures) and devastated more than 10 million people. Not small. And remember with every flood and every drought the poor get poorer. The entire development dividend is lost; homes, toilets and schools built are washed away and livelihoods, destroyed.
The answer to floods is what has been discussed for long. In fact, it was practised in these flood-prone regions many decades ago. It requires planning systems that can divert and channelise water so that it does not flood land and destroy life. It means linking rivers to ponds, lakes and ditches so that water is free to flow. This will distribute the water across the region and bring other benefits. It will recharge groundwater so that in the subsequent months of low rainfall, there is water for drinking and irrigation.
It will also ensure that there is food during the flood period, as wetlands are highly productive in terms of fish and plant food.
Mitigating floods and droughts has only one answer: obsessive attention to building millions and millions of connected and living water structures that will capture rain and be a sponge for flood and storehouse for drought. The only question is: when will we read the writing on the wall? Get with it. Get it right.
What’s causing so many changes to India’s monsoons?
Raghu Murtugudde, The Third Pole
For the third year in a row, India’s monsoon season has produced floods in the northwest/northeast, while south India has a rainfall deficit. The key question right now is whether we’re headed towards increased monsoon extremes, or whether global warming is causing shifts in the duration, intensity and frequency of rainfall.
Met department says monsoon is going well, but reservoirs across India tell a different story
Mridula Chari, Scroll.in
As the third month of the monsoon draws to a close, the India Meteorological Department continues to stand by its prediction that this season’s rainfall will be 98% of the long-period average. The department predicted in April that India as a whole would receive 99% of its average monsoon rainfall. It revised the prediction in June, and provided a region-wise break-up: North West India would get 96% of the long-period average rainfall, Central India 100%, the southern peninsula 99% and North East India 96%. The prediction’s margin of error was set at 8%. As of August, it is increasingly evident that should these numbers actually hold true by the end of the monsoon season, it will only be because of averages.
The monsoon’s uneven spread
Sayanatan Bera, Live Mint
The June-to-September south-west monsoon, which was forecast to be normal this year, has so far seen a shortfall of just 3%, as compared to the normal or 50-year average, but the overall deficit is masking its uneven geographical spread, shows data from the India Meteorological Department (IMD). Till 30 August, the data shows that 210 districts—or a third of the 630 districts in India for which IMD receives rainfall data daily—have seen deficit rains of 20% or more, while another 117 districts have received excess rains of 20% or more, compared to normal.
Droughts and floods: India’s water crises demand more than grand projects
Bhaskar Vira, The Conversation
Water is an issue that cuts across all aspects of social and economic life in India. Compartmentalised responses are unlikely to adequately address the current crises. There is a need for an integrated approach, which addresses source sustainability, land use management, agricultural strategies, demand management and the distribution and pricing of water.