The article discusses the current state of mango production in India in the context of rising temperatures attributed to climate change. It synthesizes anecdotal evidence from farmers and scientific data from the India Meteorological Department (IMD), highlighting the challenges and adaptations in mango cultivation.
Summary:
Decline in Mango Quality and Yield:
- Farmers have reported reduced sweetness, higher prices, early arrivals in the market, and shorter shelf-life for mango pickles.
- Concerns are rising about the future of mango harvests in light of climate change.
Temperature Trends:
- The IMD notes that 2024 was the warmest year on record since 1901, with annual mean surface air temperatures 0.65°C above the 1991-2020 average.
- The last 12 years have consistently shown warmer conditions, breaking the historical pattern of alternating cool and warm years.
Mango Productivity Data:
- Historical data from the Horticulture Department reveals productivity variations between 5.5 to 9.7 metric tonnes per hectare (MT/Ha) from 2001-2025, with an expected productivity of 9.4 MT/Ha for 2024-25.
- This is higher than other major mango producers, China (8.74 MT/Ha) and Thailand (8.36 MT/Ha).
Increased Cultivation Area:
- Area under mango cultivation increased by 2.34% in 2023-24, indicating a rise in both area and production volume (224.23 lakh tonnes compared to 208.72 lakh tonnes the previous year).
Impact of Climate Change on Mango:
- Higher temperatures potentially lead to fruit drop, sun scalding, and uneven ripening. Specific varieties like Alphonso may experience spongy tissue disorder.
- Environmental stresses such as fluctuating weather patterns are disrupting the blooming and fruit-setting stages of mango trees.
Genetic Diversity and Adaptation:
- Research led by Rajdeep Haldar highlights the role of genetic diversity in enhancing mango adaptability to climatic challenges.
- Mango species have the potential to thrive despite climate changes due to various physiological mechanisms that help them adjust.
Future Outlook:
- Despite current challenges, the adaptability of mangoes and the genetic diversity available provide a reason for optimism in maintaining mango production levels amidst increasing temperatures.
Important Points:
- Concerns are raised over mango quality and financial impact on farmers due to climate change.
- 2024 recorded the highest temperatures globally since records began.
- Expected high productivity figures for mango cultivation, surpassing other countries.
- Continuous expansion in mango cultivation area reflects positive trends.
- Climate change impacts include fruit quality and ecological disruptions.
- Genetic adaptability of mango plants could mitigate some adverse effects of climate change.
- The future of mango production shows potential due to advancements in agricultural practices and genetic research.
The article underscores the importance of addressing climate change and enhancing agricultural resilience while harnessing the potential of genetic diversity in crops like mangoes.

The article discusses the current state of mango production in India in the context of rising temperatures attributed to climate change. It synthesizes anecdotal evidence from farmers and scientific data from the India Meteorological Department (IMD), highlighting the challenges and adaptations in mango cultivation.
Summary:
Decline in Mango Quality and Yield:
- Farmers have reported reduced sweetness, higher prices, early arrivals in the market, and shorter shelf-life for mango pickles.
- Concerns are rising about the future of mango harvests in light of climate change.
Temperature Trends:
- The IMD notes that 2024 was the warmest year on record since 1901, with annual mean surface air temperatures 0.65°C above the 1991-2020 average.
- The last 12 years have consistently shown warmer conditions, breaking the historical pattern of alternating cool and warm years.
Mango Productivity Data:
- Historical data from the Horticulture Department reveals productivity variations between 5.5 to 9.7 metric tonnes per hectare (MT/Ha) from 2001-2025, with an expected productivity of 9.4 MT/Ha for 2024-25.
- This is higher than other major mango producers, China (8.74 MT/Ha) and Thailand (8.36 MT/Ha).
Increased Cultivation Area:
- Area under mango cultivation increased by 2.34% in 2023-24, indicating a rise in both area and production volume (224.23 lakh tonnes compared to 208.72 lakh tonnes the previous year).
Impact of Climate Change on Mango:
- Higher temperatures potentially lead to fruit drop, sun scalding, and uneven ripening. Specific varieties like Alphonso may experience spongy tissue disorder.
- Environmental stresses such as fluctuating weather patterns are disrupting the blooming and fruit-setting stages of mango trees.
Genetic Diversity and Adaptation:
- Research led by Rajdeep Haldar highlights the role of genetic diversity in enhancing mango adaptability to climatic challenges.
- Mango species have the potential to thrive despite climate changes due to various physiological mechanisms that help them adjust.
Future Outlook:
- Despite current challenges, the adaptability of mangoes and the genetic diversity available provide a reason for optimism in maintaining mango production levels amidst increasing temperatures.
Important Points:
- Concerns are raised over mango quality and financial impact on farmers due to climate change.
- 2024 recorded the highest temperatures globally since records began.
- Expected high productivity figures for mango cultivation, surpassing other countries.
- Continuous expansion in mango cultivation area reflects positive trends.
- Climate change impacts include fruit quality and ecological disruptions.
- Genetic adaptability of mango plants could mitigate some adverse effects of climate change.
- The future of mango production shows potential due to advancements in agricultural practices and genetic research.
The article underscores the importance of addressing climate change and enhancing agricultural resilience while harnessing the potential of genetic diversity in crops like mangoes.

World's Largest Electric-Powered Ship
On May 2, 2025, an Australian boatbuilder, Incat, unveiled the world's largest electric-powered ship, Hull 096, which measures 130 meters (426 feet) in length. This vessel is designed to transport 2,100 passengers and up to 225 vehicles, primarily serving the ferry route across the River Plate between Buenos Aires, Argentina, and Uruguay. The ship is powered by over 250 tonnes of batteries, emphasizing the shift towards large-scale, low-emission transportation solutions in maritime travel.
Key highlights from the article include:
- Launch Details: Incat launched Hull 096 in Hobart, Tasmania, highlighting its role in promoting sustainable transport.
- Environmental Impact: The shipping industry is responsible for nearly three percent of global greenhouse gas emissions. The International Maritime Organization (IMO) is pushing for a global pricing system to limit maritime carbon emissions, mandating that all ships use a less carbon-intensive fuel mix by 2028; non-compliance may result in financial penalties.
- Concerns over Biofuels: Environmental groups caution that a potential reliance on biofuels could lead to issues like deforestation and is insufficient for addressing overall maritime emissions.
- Technical Specifications: Hull 096's Energy Storage System (ESS) offers more than 40 megawatt hours of installed capacity and was developed in partnership with Finnish engine manufacturer Wartsila. The ship is equipped with eight electric-driven waterjets.
- Industry Perspective: Wartsila's Marine President Roger Holm emphasized the role of ferries in providing eco-friendly transportation solutions and the necessity for ship electrification to help achieve net-zero emissions in the maritime sector.
- Initial Design Plans: Initially named China Zorilla, the ship was intended to operate on liquefied natural gas (LNG) before being transformed to operate on battery power.
This innovative ship marks a significant step towards reducing maritime emissions and meeting increasing transportation needs in an environmentally conscious manner.
Environment and Ecology

India Sets Greenhouse Gas Emission Targets
The Indian government has introduced draft Rules aimed at reducing greenhouse gas (GHG) emissions in energy-intensive industries through the establishment of specific emission intensity targets. Here’s a comprehensive summary detailing the context and contents of the new policy:
Draft Notification: The Ministry of Environment, Forest and Climate Change (MoEFCC) released the Draft Greenhouse Gases Emissions Intensity (GEI) Target Rules, 2025, on April 16, 2023, which outlines compliance for the Carbon Credit Trading Scheme (CCTS).
Purpose of the CCTS: The CCTS aims to create a framework for the trading of carbon credits to reduce emissions within energy-intensive sectors, aligning with India’s commitments under the Paris Climate Agreement (2015).
Feedback Period: The draft Rules are open for public objections and suggestions for a 60-day period post-notification.
Understanding GHG Emissions Intensity (GEI): GEI defines the GHG emissions produced per unit of product output, expressed in tCO2e (tonnes of carbon dioxide equivalent), which standardizes the measurement of impact from various GHGs.
Targets Established: The draft sets baseline emissions for 2023-24 and specifies reduction targets for 2025-26 and 2026-27 for sectors such as aluminium, chlor-alkali, pulp and paper, and cement, affecting 282 industrial units.
Major Corporations Involved: Companies such as Vedanta, Hindalco, and Ultratech have been assigned specific emission reduction targets under these Rules.
Compliance and Enforcement: The Rules stipulate mechanisms for compliance and penalties for failure to meet the outlined targets, promoting responsible emission management.
Significance of Industry-Specific Targets: Establishing these targets is critical to help India achieve its climate goals, including a commitment to reduce emissions intensity of its GDP by 45% by 2030 compared to 2005 levels.
Encouraging Cleaner Technologies: Industries will be motivated to adopt low-carbon production methods, such as transitioning from coal to biomass in cement production. The ultimate aim is climate change mitigation through improved practices.
Relation to Carbon Credit Trading: The introduction of GEI targets helps clarify the requirements for industries to earn carbon credits, which can be traded in the carbon market. Industries that exceed their targets can sell credits, while those that do not would need to purchase them or face penalties.
Market Mechanism: The carbon credits scheme aims to incentivize industries to reduce their carbon footprint, offering financial benefits to those that can invest in cleaner technologies.
Global Context: Similar carbon credit systems operate in other regions, especially in Europe and China, highlighting a global trend toward carbon trading as a tool for emissions reduction.
This new regulatory framework marks a significant step towards enhancing India’s climate action, seeking to institutionalize emissions control while fostering economic growth through technological advancement in high-emission industries.
Important Points:
- Introduction of draft rules for GHG emissions reduction in energy-intensive industries.
- Establishment of GEI as a measure per unit of product output.
- Targets set for multiple sectors, impacting 282 industrial units.
- Penalties and compliance mechanisms included for non-adherence.
- Goals aligned with India’s commitment to the Paris Agreement.
- Promotion of cleaner technologies through industry-specific targets.
- Clarity on earning and trading carbon credits mentioned.
- Aims to incentivize a shift toward a low-carbon economy.
Environment and Ecology

Spain and Portugal Power Outage Analysis
Summary:
A recent power outage affecting Spain and Portugal has highlighted vulnerabilities in the Iberian Peninsula's electrical grid. The outage, which occurred on April 28, 2025, raised concerns about the interconnected nature of the regional electrical system, which comprises thousands of components. The cause of the blackout is under investigation, with several potential contributing factors. Experts emphasize the importance of real-time data analysis by grid operators to maintain the frequency balance critical to the grid's stability.
Key Observations:
Power Grid Vulnerability: The incident underlined how fragile the electrical grid is on the Iberian Peninsula.
Complex System Analysis: Experts like Pratheeksha Ramdas from Rystad Energy noted that grid operators must analyze massive amounts of real-time data to trace issues without premature conclusions.
Causes of Outages: Common causes of power outages include:
- Sudden shutdowns of production sources (e.g., power plants).
- Fuel shortages affecting thermal power plants.
- Natural disasters (e.g., storms, extreme temperatures) that stress infrastructure and amplify demand.
- Overloads on high-voltage power lines and potential cyberattacks (which have been ruled out in this case).
Frequency Regulation: The electrical frequency in Europe is calibrated to 50 hertz (Hz), and deviations from this standard can indicate imbalances in electricity production and demand. Maintaining the frequency is crucial to prevent automated protective measures from disconnecting parts of the grid.
Cause of the Outage: Identifying the precise cause of the outage remains challenging. However:
- A weak interconnection between the Iberian Peninsula and the broader Western European electrical grid was speculated to contribute to instability.
- The probable cause was the failure of one or two key transmission facilities, leading to cascading issues in the connected network.
Renewable Energy Influence: On the day of the outage, Spain was primarily dependent on renewable sources, with about 70% of electricity supplied by solar and wind. This high renewable output during midday posed risks, as renewable generation cannot be controlled on demand like gas-fired stations.
Warnings from Experts: The European Network of Transmission System Operators had earlier warned of solar overproduction risks as good weather approached. Ramdas stated that the outage serves as a "clear warning" for future risks if regional coordination and resilience measures don't improve.
Need for Infrastructure Improvements: Experts, including Lion Hirth from the Hertie School, emphasized the need for enhanced flexibility measures such as energy storage solutions, fast-ramping power plants, and better interconnections to mitigate the effects of large fluctuations in renewable output on the grid.
Call for Action: Experts are urging for stronger domestic resilience and improved cooperation between regions to prevent more severe consequences from future grid failures.
Important Sentences:
- The power outage highlights the vulnerability of the Iberian Peninsula’s electrical grid.
- Outages often result from sudden shutdowns and external conditions like natural disasters.
- Real-time data analysis by grid operators is crucial for preventing blackouts.
- Spain's dependency on renewables such as wind and solar increased the risks of instability.
- Experts warn of the need for better infrastructure and coordination to build resilience against future outages.
- The incident illustrates the challenges of integrating high levels of renewable energy into existing grid systems.
Environment and Ecology

Monsoons Impact Marine Productivity Study
A recent study published in Nature Geoscience highlights the relationship between monsoon patterns and marine productivity in the Bay of Bengal over the last 22,000 years. The research, conducted by an international team of scientists from India, China, Europe, and the United States, found that fluctuations in the Indian Summer Monsoon (ISM) significantly impact plankton growth, which is crucial for marine food webs and the overall health of aquatic ecosystems.
Key Points:
The study emphasizes that both strong and weak monsoon conditions disrupt ocean mixing in the Bay of Bengal, leading to a significant decline in marine productivity by up to 50%.
The Bay of Bengal, while constituting less than 1% of the world's ocean area, contributes nearly 8% of global fishery production, highlighting its importance to coastal communities that rely on fishing for their livelihoods.
The research involved analyzing fossilized foraminifera shells to reconstruct historical marine conditions, revealing that extreme historical monsoon patterns corresponded with periods of reduced marine productivity, notably during the Heinrich Stadial 1 and early Holocene epochs.
Disruptions caused by excessive freshwater from strong monsoons lead to decreased nutrient mixing, while weak monsoons exacerbate nutrient starvation due to reduced wind-driven mixing.
The findings raise alarms about contemporary climate change, as current climate models predict similar patterns of monsoon variability, which could further threaten marine resources and food security for the millions dependent on the fisheries in the Bay of Bengal.
Researchers are particularly concerned about future scenarios involving warmer surface temperatures and increased freshwater runoff, conditions that have historically accompanied declines in marine productivity.
This study illustrates the far-reaching impacts of monsoon variability on ecological systems and coastal communities, underlining the need to understand climate-driven changes to safeguard marine resources.
Environment and Ecology