The Union Ministry of Environment, Forest and Climate Change has sanctioned the Coastal Zone Management Plan (CZMP) for ten coastal districts in Kerala, which include Kasaragod, Kannur, Kozhikode, Malappuram, Thrissur, Ernakulam, Kottayam, Alappuzha, Kollam, and Thiruvananthapuram. This plan aligns with the Coastal Regulation Zone Notification of 2019, allowing these districts to benefit from relaxed CRZ regulations and to initiate development activities, including the construction of buildings toward the seaward side.

What is the Process?

• The Ministry has instructed the State government to publish the signed copies of the approved CZMPs for all ten coastal districts on the Kerala Coastal Zone Management Authority website within one month. The Ministry clarified that all applications for CRZ clearance submitted after the approval of CRZ 2019 will be assessed according to the 2019 Notification.
• The Union government has started designating certain areas as Coastal Regulation Zones (CRZ) to protect the unique coastal and marine environments, ensure livelihood security for fishing communities and local residents, and promote sustainable development based on scientific principles while considering the risks of natural hazards and rising sea levels due to climate change.

Implications for Kerala

• Kerala boasts a coastline of approximately 590 km, with nine out of its fourteen districts bordering the Arabian Sea. The 2011 Census recorded Kerala’s population density at 859 individuals per square kilometer, significantly higher than the national average of 382 per square kilometer.
• The coastal regions exhibit a notably higher population density compared to other areas in the State. It is estimated that five corporations, 36 municipalities, and 245 gram panchayats will fall under the CRZ regime across these ten districts.
• The intense demographic pressure has led to widespread violations of CRZ regulations along the coastline. Numerous land modifications, including illegal wetland reclamation and encroachments, have been reported in Kerala. Hundreds of structures have been constructed along the coast in clear violation of the rules.
• The CRZ 2011 regime, which was in effect until the CZMP approval, focused on preserving the coastal ecosystem, thus safeguarding the livelihoods of millions of fishers and coastal communities.

Benefits of the CZMP Approval

• The State government estimates that the CZMP approval will directly benefit around 1 million people by relaxing previous restrictions on new housing construction and repairs to existing homes. This approval is a prerequisite for states to implement CRZ 2019 and access its associated benefits.
• Under the new regime, the No Development Zone (NDZ)—which must remain untouched—around tidal-influenced water bodies will be reduced from 100 meters to 50 meters from the High Tide Line in at least 122 local bodies. Consequently, 37 village panchayats will be classified as CRZ-III A, where the NDZ has decreased to a quarter of its former size.
• CRZ-III A areas are densely populated rural zones, with a 2011 Census density of 2,161 people per square kilometer. The NDZ in this category will now extend 50 meters from the High Tide Line, compared to 200 meters stipulated by the CRZ 2011 notification.
• Additionally, 66 village panchayats will be moved into the CRZ-2 category, facilitating the construction of both commercial and residential buildings along authorized structures.
• The NDZ within Kerala’s CRZ areas will be halved, decreasing from 239.431 square kilometers to 108.397 square kilometers, as determined by the CRZ 2011 notification.

Concerns Regarding Mangroves

Large areas of mangrove vegetation, crucial for the coastal ecosystem and as breeding grounds for numerous fish and other organisms, may face exploitation due to the 2019 notification, which limits legal protections for government holdings larger than 1,000 square meters to 50-meter buffer zones. As a result, the buffer zones for mangroves will shrink from 4,300 hectares to 2,500 hectares across the State.

The new regulations also eliminate the mandatory buffer zone around mangrove areas located in private properties. While private landowners may welcome this change, it poses a significant risk to the already dwindling mangrove vegetation, potentially leading to the loss of vast areas of these vital ecosystems.

How global warming affects forecasting?

For Preliminary Examination:  Current events of national and international importance

For Mains Examination: GS III - Environment & ecology

Context:

Existing models cannot reproduce monsoon trends in the past half century and are considered unreliable for the future. Meteorologists will need to figure out if the predictability of natural modes such as hurricanes, El Niño, La Niña, and the Indian Ocean Dipole will decrease as the warming is relentless, if not accelerating

Read about:

What is global warming?

Global warming and it's effects

Key takeaways:

• The record-breaking warming witnessed in 2023-2024 offers a more vivid understanding of the impacts of global warming. This period has been marked by a series of extreme weather events across the globe, including intense heatwaves, powerful cyclones, severe floods, droughts, and widespread wildfires.
• Some estimates suggest that the world has already surpassed the 1.5º C warming mark, meaning that the earth's average surface temperature has risen over 1.5º C compared to pre-industrial levels. It's important to note that these global temperatures are based on a combination of actual data and climate modeling.
• Since the 1.5º C threshold is a key concern for the Alliance of Small Island Developing States, scientists have developed models to forecast the environmental disruptions that exceeding this limit could cause.
• However, there's still uncertainty about how long temperatures need to remain above this level for the expected effects to fully unfold.
• The extreme weather patterns seen in 2023-2024 also serve as a stark reminder of how challenging it is to predict weather and climate with the precision and detail necessary for effective disaster management. Unfortunately, loss of life, damage to property, and destruction of infrastructure continue to disproportionately affect vulnerable communities, especially those in poverty.

2024 Predictions and Realities

• While meteorologists correctly anticipated the 2023 El Niño in the spring, the intensity of warming in 2023-2024 exceeded expectations. Factors such as water vapor from the 2022 Hunga Tonga–Hunga Ha‘apai underwater volcanic eruption and carbon dioxide from wildfires may have intensified this warming.
• The 2023 monsoon was below average but didn't qualify as an El Niño drought, which researchers are still trying to understand. Forecasts that predicted a strong La Niña in late 2024 seem less likely to materialize, and other weather patterns, such as the cyclone season, have also behaved differently from expectations.
• This isn't merely a critique of prediction models but rather a call for caution and learning from this period of extraordinary warming. We must understand its implications for future forecasts and climate projections.

Challenges of Predicting the Climate

• The often-quoted saying, “Prediction is difficult, especially about the future,” holds true, especially in weather and climate forecasting. Despite improvements in models and observation networks, global warming might make predictions even more challenging. Are the unexpected weather patterns of this year an anomaly, or do they signal what lies ahead?
• Numerous studies have explored the effects of warming on natural phenomena such as hurricanes, monsoons, and El Niños. However, if the earth has already warmed beyond 1.5º C, can we draw any clear conclusions about how these patterns have adapted so far?
• Unfortunately, the recent warming hasn't lasted long enough for us to identify significant shifts in dominant climate trends confidently. While climate models are proficient at simulating natural patterns based on solar energy, they aren't flawless, often producing inconsistent results.
• For instance, current models struggle to accurately replicate monsoon trends over the past fifty years and remain unreliable for predicting future trends. This limitation highlights the need to address whether monsoon patterns fluctuate by decade or indicate genuine trends influenced by climate change.

The Future of Climate Predictions

While there’s optimism for the advancement of climate predictions, relying solely on hope isn’t a strategy. It’s crucial to enhance models and acknowledge their existing strengths despite certain shortcomings. We must determine whether the predictability of natural events like hurricanes and El Niños will diminish as warming accelerates. Researchers are working tirelessly to refine models, data networks, and technologies, including AI, to tackle this challenge.

There’s cause for optimism regarding more reliable and actionable early warnings on a local scale.

Lessons from 2023

Climate projections are currently based on models that factor in emissions, population growth, and mitigation strategies. For the next couple of decades, uncertainties in projections will stem from model limitations and natural climate variability. Beyond this period, uncertainties will primarily depend on hypothetical scenarios.

The challenge of capturing the influence of warming on natural patterns will continue to pose a problem for long-term climate projections. Focusing on improving weather and climate predictions is essential to refine these models. The most reliable approach might be to limit our projections to just a decade or two ahead, given the difficulty of predicting geopolitical, economic, and societal changes over a more extended timeframe

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