Rising from the muddy depths of Singapore’s tropical swamps, the distinctive roots of the mangrove trees lie draped in a descending curve – with some parts of the roots buried in the wet soil, and other parts exposed to the humid air. 

Because home along the coast is consistently flooded with sea water brought in by the tides, mangrove trees need to have a part of their roots above water to help them breathe in a waterlogged environment that is often low in oxygen. It is this distinct vertical accretion in their growth that makes mangrove trees incredibly important in our fight against climate change.

The mangrove ecosystem is an intriguing, intricate one that allows its trees to adapt to high temperature and salinity levels. As a dense forest, the tangled...

Pandemics & Natural Hazards is a special series for the EOS Blog which looks at the compounding impacts of coinciding disasters. This third commentary is a contribution from EOS’ Centre for Geohazard Observations.

The daily coverage of the novel coronavirus disease (COVID-19) in the media has given the public an insight into how the crisis has impacted the healthcare sector. We’ve seen footage of hospitals inundated with stricken patients, hospital staff begging for supplies, and the global race to find the medical holy grail of the moment – a COVID-19 vaccine.

But what about the other sectors of science that are not directly linked to the coronavirus? How are they coping with, even transforming in, this pandemic and the ensuing cross-border lockdowns?

Channel NewsAsia’s documentary titled “Carbon Conundrum” investigates how carbon emissions contribute to rising global temperatures, which lead to rising sea levels and extreme weather events. In the documentary aired on television (channel 106 on Starhub) on 31 March 2020, Assistant Professor Aron Meltzner and his team provided insights on how rising sea levels in the southeast Asian region could impact Singapore.

Using microatolls (circular colonies of coral) the team is able to track changes in the sea level. A study led by Asst. Prof Meltzner found that more than 6,000 years ago when there was no human-driven climate change, there were fluctuations of about 60 centimetres in sea levels in southeast Asia. He...

Today is World Tsunami Awareness Day. It is a timely opportunity to create greater global awareness about tsunamis as a geological hazard. Before asking how we can stay safe (or safer) from tsunamis, we must first think about how we might improve on the resilience of our current and future infrastructure.

Let’s start by looking at what a tsunami is. A tsunami is a series of waves caused by an underwater earthquake, a volcanic eruption, a landslide, or meteorological processes (meteo-tsunamis). 

So why is SE Asia vulnerable to tsunami hazards? First of all, SE Asia lies in a complex tectonic setting that contains many fault systems and volcanoes. Coupled with a high population density and a tight network of infrastructure in coastal areas, one can imagine just how...