Ini Alasan Jakarta Diprediksi Tenggelam Tahun 2050 | #Ecofrontlines

Summary

Jakarta is facing a severe environmental crisis, as its northern coastal areas are sinking due to both climate change-induced rising sea levels and extreme land subsidence caused by excessive groundwater extraction. The city’s rapid urbanization, unregulated water usage, and continued construction are accelerating the sinking of the land. This poses a grave risk of submerging large parts of the city within the next few decades. Urgent measures are needed, including stricter groundwater regulations and sustainable urban planning, to mitigate the damage and protect Jakarta’s future.

Takeaways

• 🌊 Jakarta's northern coastline has been sinking for years, with historical landmarks like the Masjid in Muara Baru serving as a reminder of this ongoing issue.
• 🏙 20 years ago, the local community was still able to worship at the mosque, but now it stands as a symbol of how buildings in Jakarta's coastal areas are at risk of similar fates.
• 🌊 The sea level has risen by 3 meters above the land in Muara Baru, with a protective embankment now safeguarding homes from the sea.
• 🌍 Jakarta is experiencing the effects of rising sea levels due to climate change, but the main cause of the sinking is the extreme land subsidence.
• 🏠 Residents in Penjaringan, Jakarta Utara, have had to repeatedly raise their homes' foundations to prevent flooding due to severe land subsidence over the past two decades.
• 💧 Residents in Muara Angke have raised their homes twice to prevent flooding, but still face constant challenges as floodwaters continue to enter their homes.
• 🌧 Every year, land subsidence worsens, making it increasingly difficult to manage the flooding from high tides and rain, especially in Jakarta Utara.
• 💡 The subsidence is largely driven by the excessive extraction of groundwater from over 4,000 buildings in Jakarta for commercial purposes, which worsens the sinking of the land.
• 📉 The extraction of groundwater has been ongoing for over three decades, leading to the shrinkage of the soil layers and making it harder for rainwater to replenish groundwater supplies.
• 🚧 Despite warnings, the construction of tall buildings continues to exacerbate the problem, and policies to regulate groundwater extraction are not yet fully enforced.

Q & A

What is the main reason for Jakarta's coastal areas sinking?

The main reason for Jakarta's coastal areas sinking is a combination of rising sea levels due to climate change and extreme land subsidence caused by the excessive extraction of groundwater.

How has the Masjid Waladun A in Muara Baru become a symbol of the issue?

Masjid Waladun A in Muara Baru serves as a silent witness to the sinking of Jakarta's coastal areas. While it was once a place of worship, it now stands as a reminder of the growing impact of rising sea levels and land subsidence in the region.

What is the current situation of the water levels in Muara Baru?

Currently, the sea level in Muara Baru is about 3 meters above the land, with levees constructed to protect residential areas from flooding, though the situation is worsening.

What is causing land subsidence in Jakarta?

Land subsidence in Jakarta is primarily caused by the excessive extraction of groundwater, leading to the gradual sinking of the land. This issue is compounded by the rapid development of buildings in the city.

How are residents of Jakarta dealing with the flooding caused by land subsidence?

Residents have repeatedly raised the foundations of their houses to prevent flooding. Despite this, many still face persistent problems with water entering their homes, particularly during heavy rainfall or high tides.

How much has the land sunk in certain areas of Jakarta over the past two decades?

In areas like Penjaringan, Jakarta Utara, the land has sunk by 6-8 cm every year over the past two decades, significantly impacting local communities.

What is the role of Jakarta’s rapid urban development in land subsidence?

The rapid urban development in Jakarta, particularly the construction of large buildings, adds weight on the land, further accelerating the sinking process. Additionally, the demand for groundwater extraction in these buildings exacerbates the problem.

How are Jakarta's groundwater resources being managed?

Despite the ongoing extraction of groundwater for commercial purposes, the management of these resources is inadequate. Only around 200 new permits for groundwater extraction have been granted in recent years, highlighting a lack of regulation and oversight.

What is the predicted future impact on Jakarta's coastal areas by 2050?

By 2050, Jakarta's coastal areas are predicted to be submerged due to the combined effects of rising sea levels and ongoing land subsidence, unless there are significant policy changes and actions to address these issues.

What measures are being suggested to prevent Jakarta's further sinking?

The suggestion includes halting the extraction of groundwater, implementing strict regulations on construction projects, and initiating a moratorium on new developments in areas prone to subsidence. Additionally, relocating industries out of Jakarta is being considered as a long-term solution.