Geology for Global Development

Geohazards

Climate change: to mitigate or to adapt? Managing disaster: Cyclone Fani in India, a stronger Atlantic hurricane season. That and more in Jesse Zondervan’s May 2019 #GfGDpicks #SciComm

Climate change: to mitigate or to adapt? Managing disaster: Cyclone Fani in India, a stronger Atlantic hurricane season. That and more in Jesse Zondervan’s May 2019 #GfGDpicks #SciComm

Each month, Jesse Zondervan picks his favourite posts from geoscience and development blogs/news which cover the geology for global development interest. Here’s a round-up of Jesse’s selections for the last month:

This month Cyclone Fani hit India with full force. An effective mass evacuation resulting in the loss of no human lives is an impressive disaster management feat.

As disaster was averted in India, the Guardian published a briefing on the risk of hurricanes, and whether climate change is to blame for stronger ones. Are people adapting to these changes?

Adapting, argues Marketplace show host Molly Wood in her Wired article, isn’t surrender, it is survival. Can we afford to keep attempting to mitigate climate change if we need to adapt to the effects that are already there?

Susannah Fisher and Andrew Norton agree with Wood that adaptation is often overlooked in climate campaigns. They seek to open our eyes to the adaptation experience that the global South has to offer. Let’s put these good practices to work in Europe! they say.

More this month, better ways to stem arsenic poisoning in Bangladesh, the struggle with landslides in Rio and much more.

Go ahead and look through this month’s picks!

Cyclone Fani

Cyclone Fani hits Indian coast, a million people evacuated at Thomson Reuters Foundation

INTERVIEW – Mass texting and 50,000 volunteers – how India moved a million people to safety by Annie Banerji at Thomson Reuters Foundation

Climate Adaptation

Climate Adaptation isn’t Surrender. It’s Survival by Molly Wood at Wired

Adapting to climate change in Europe: Building a systemic and urgent vision by Susannah Fisher and Andrew Norton at EIT Climate-KIC

Cambodians try out smartphones to track – and ease – climate woes by Jeffrey Barbee at Thomson Reuters Foundation

Climate now biggest driver of migration, study finds by Inga Vesper at SciDevNet

Climate Change

Are hurricanes getting stronger – and is the climate crisis to blame? By Oliver Milman at the Guardian

Lake sediment records reveal recent floods in NW England (UK) unprecedented at ScienceDaily

Climatologist Testifies to Senate Subcommittee Regarding Costs of Extreme Weather by Marie Denoia Aronsohn at State of the Planet

Disaster Risk Reduction

As climate shifts bring ‘horror movie’ floods, Rio struggles to adjust by Karla Mendes & Gregory Scruggs at Thomson Reuters Foundation

China eyes earthquake warning and prediction technology by Chen Xi at Global Times

Sharing Data Helps Puerto Ricans Rebound After Hurricane Maria at Eos Earth & Space News

Ritter Island gives new insights into the dynamics of volcanic landslides at ScienceDaily

Integrated urban flood risk management: Learning from the Japanese experience by Jolanta Kryspin-Watson & Jia Wen Hoe

Geology for Development

Study Identifies Better, Cheaper Ways to Stem Arsenic Poisoning in Bangladesh by Sarah Fecht at State of the Planet

 

Check back next month for more picks!

Follow Jesse Zondervan @JesseZondervan. Follow us @Geo_Dev & Facebook.

When are Californian earthquakes coming back with vengeance? How does climate-change-induced flooding increase inequality? Lessons from Cyclone Idai; that and more in Jesse Zondervan’s April 2019 #GfGDpicks #SciComm

Aftermath damage of the San Francisco earthquake of 1906

Each month, Jesse Zondervan picks his favourite posts from geoscience and development blogs/news which cover the geology for global development interest. Here’s a round-up of Jesse’s selections for the last month:

California seems to be overdue for earthquakes, meaning there has been a so-called earthquake ‘drought’ in the last century. Paleoseismic studies show that this hiatus is unprecedented in the last ten centuries. This means we might see a high frequency of earthquakes coming this century, while a generation who hasn’t experienced any major earthquake has passed.

Furthermore, a related article in the San Francisco Chronicle reports the US Geological Survey projects a major quake along the San Andreas Fault would cause more than 98 billion in building damage and kill up to 7,800 people. The main threat, however, is the aftermath with loss of power for at least three days and half of households without water for at least a month. The study highlights the importance of preparing the population for a quake and its aftermath.

Fortunately, this month also saw the publication of a Californian record of two million tiny earthquakes detected by Caltech scientists. This tenfold increase in the earthquake catalogue tells them more about how faults and earthquakes work and get triggered. Greg Beroza, a Stanford University seismologist says “It’s just like if a new telescope comes along and its magnification is 10 times greater”.

Can climate-change induced flooding increase inequality?

The answer seems to be yes, in fact it does. A report published by the Urban Institute in the US showed that people with poor credit scores suffered bigger drops in scores than those starting with high scores. While home-owners receive insurance pay-outs, costs to renters only increase due to increased demand after major storms.

Similarly the New York City Panel on Climate Change reports climate change is affecting everyday life in New York today, and will hit the poorest neighbourhoods in the future.

Consequently, social vulnerability should be considered when risk is modelled and funding allocated, according to RMS flood specialist Nicole Howe.

 

More perspectives this month on the aftermath and lessons from Cyclone Idai which struck southern Africa in March; the challenge of religious resignation to building resilience against natural hazards in Indonesia and what the new bill on the US National Volcano Warning System means to disaster risk reduction.

Go ahead and look through this month’s picks!

Aftermath and Response to Cyclone Idai

Cyclone Idai shows why long-term disaster resilience is so crucial by Channing Arndt and Claudia Ringler at The Conversation

Cyclone Idai is over – but its health effects will be felt for a long time by Kerrigan McCarthy and Lucille Blumberg at The Conversation

Responding To Cyclone Idai requires a more robust approach by Peter Kamalingin at Oxfam International

Earthquake risk in California

Reassessing California’s Overdue Earthquake Tab by Mary Caperton Morton at Eos Earth & Space Science News

What a major earthquake would do to San Francisco by Kimberley Veklerov at the San Francisco Chronicle

Scientists Uncover California’s Hidden Earthquakes by Shannon Hall at Scientific American

Flooding and inequality

How natural disasters can increase inequality by Gretchen Frazee at PBS

States are turning to data and interactive maps to help residents confront and manage flood risks by Shannon Cunniff at the Environmental Defense Fund (EDF)

Disaster Risk Reduction: Avoiding the Inevitable by Nicola Howe at RMS

New York’s Poor and Ethnic Minority Neighbourhoods to be hit hardest by Climate Change finds NYC Panel on Climate Change by Will Bugler at Acclimatise

Climate Adaptation

7 American cities that could disappear by 2100 by Aria Bendix at Business Insider

Improving Water Resources Management with Satellite Data by Aaron Sidder at EOS Earth and Space Science News

Central America: Climate, Drought, Migration and the Border by Lieutenant Commander Oliver-Leighton Barrett at The Center for Climate & Security

Disaster Risk Reduction

Living with natural disasters – how to change Indonesia’s culture of passive resignation by Juliana Wijaya at The Conversation

Major geological survey hopes to make Indonesia more resistant to deadly tsunamis by Tim Pilgrim at Brunel University London

Hurricane Harvey provides lessons learned for flood resiliency plans at ScienceDaily

US National Volcano Warning System Gains Steam by Forrest Lewis at Eos Earth & Space Science News

External Opportunities

Register for Science and Policy Forum of 2019 Global Platform for DRR at Integrated Research on Disaster Risk (IRDR)

The Art of Resilience – Call for art helping build society’s resilience to natural hazards at GFDRR

Register to attend or watch online – Disasters: impact on child poverty and development at the Overseas Development Institute

Teaching Assistantship Applications Open for Sustainable Development Undergraduate Courses at the Earth Institute, Columbia University

Summer 2019 Teaching Assistantship Available in Environmental Science and Policy Program at the Earth Institute, Columbia University

 

Check back next month for more picks!

Follow Jesse Zondervan @JesseZondervan. Follow us @Geo_Dev & Facebook.

Planning for future cyclone Idais; Cloud seeding in the Philippines; Climate Change Getting you Down? This and more in Jesse Zondervan’s March 2019 #GfGDpicks #SciComm

rain drops on leaf

Each month, Jesse Zondervan picks his favourite posts from geoscience and development blogs/news which cover the geology for global development interest. Here’s a round-up of Jesse’s selections for the last month:

The UN World Meteorological Organization called cyclone Idai, which hit Mozambique this month, “possibly the worst weather-related disaster to hit the southern hemisphere”. Civil Engineering professor Ryan P. Mulligan discusses what climate science tells us about the future of storms like this.

Cyclone Idai paralysed the city of Beira and is a reminder that communities can really benefit from more investment in disaster risk reduction and climate change adaptation.

On that note, the UN Office for Disaster Risk Reduction announced that experts and representatives from 33 countries agreed to establish a Coalition for Disaster Resilient Infrastructure (CDRI). The coalition targets the challenge of safeguarding infrastructure against climate change enhanced disaster risks, as our dependency on infrastructure increases in the 21st century.

Cloud Seeding

As Dr. Michael A. Bengwayan discusses whether cloud seeding is a viable solution for drought, the Filipino Department of Agriculture announces it will start using the geoengineering technique in areas hit by El Niño.

Rather than geoengineering the climate, cloud seeding is a softer approach to force water out of clouds, which need to be present before cloud seeding can work. The Philippines might offer an insightful example.

Further topics include the exciting climate solutions pioneered by African leaders, laid bare by an expedition on Mount Kenya; and coping strategies for climate change anxieties.

Cyclone Idai

Coalition for Resilient Infrastructure takes off by Denis McClean at UNISDR

Hurricanes to deliver a bigger punch to coasts by Ryan P. Mulligan at The Conversation

Cyclone Idai: why disaster awareness and preparedness matters at the United Nations Environment

Climate Adaptation

Mount Kenya: A View of Climate Impacts and Opportunities at The World Bank

Cloud Seeding, Will It Save Us From Drought? – OpEd by Dr. Michael A. Bengwayan at Eurasia Review

Filipino Department of Agriculture to start cloud seeding by Eireene Jairee Gomez at Manila Times

Climate Change Getting You Down? Here Are Some Coping Strategies by Sarah Fecht at State of the Planet

How to make effective climate policies? Make citizens lead by Kiara Worth at the Tyndall Centre

Novel tool unveiled for climate risk profiling and adaptation at the Climate and Development Knowledge Network

Climate change

Mapped: How climate change affects extreme weather around the world at Carbon Brief

Disaster Risk

78% of older teenagers in Japan anxious about natural disasters, survey says by Magdalena Osumi at the Japan Times

Himalayan hydro developers wilfully ignore climate risks by Beth Walker at India Climate Dialogue

The Dangers of Glacial Lake Floods: Pioneering and Capitulation by Jane Palmer at American Geophysical Union’s Eos

External Opportunities

Deadline for Submitting Voluntary Commitments approaching at UNISDR

Summer 2019 Internship Opportunities at the Columbia Center on Sustainable Investment

Summer 2019 Earth Institute Internship Opportunities

African Climate Risks Conference 2019

Vacant PhD positions in Sustainability Science at Lund University Centre for Sustainability Studies

 

Check back next month for more picks!

Follow Jesse Zondervan @JesseZondervan. Follow us @Geo_Dev & Facebook.

Rainfall related geohazards: floods, landslides and mudslides in Rio – A dangerous combination of nature and human-related factors

Rainfall related geohazards: floods, landslides and mudslides in Rio – A dangerous combination of nature and human-related factors

Rainfall-related geohazards in Brazil’s poorer, mountainous city margins could be mitigated using better urban planning and communication. Our own Brazilian blogger Bárbara Zambelli Azevedo explores the problem and possible solutions.

I come from Brazil, a country well-known for its beautiful landscapes, football and carnival. Ok, some stereotypes are true, indeed.

Situated in the middle of the South American tectonic plate and away from geohazards such as earthquakes, volcanoes and tsunamis, this tropical country may seem like paradise to some. However, we are not completely safe from geohazards.

Every year during the summer, which is a heavy rain season, many lives are lost, and people are displaced by floods, landslides and mudslides all over the country. I want to give a particular focus on the state of Rio de Janeiro, where a summer storm killed at least 6 people on the 6th of February this year. I should mention that it was not an isolated event at all.

The situation of the state of Rio de Janeiro is complicated, and its analysis should take into consideration the geomorphology of the area, its climate and – importantly – urban planning.

According to the Brazilian Geological Survey, the bedrock in the area is composed mainly of igneous and metamorphic rocks, and the relief is characterised by steep mountain slopes over 2,000 m, alternated with sedimentary basins.

In 2011 floods, landslides and mudlslides resulted in 903 deaths and over 2,900 people had their homes destroyed

These mountains are a part of a major structure named Serra do Mar (Sea Ridge), a 1,500 km long system of mountain ranges and escarpments parallel to the Atlantic Ocean, running from Rio de Janeiro State until Santa Catarina, in the south of Brazil. Geomorphological features seen today started to form during the opening of the Atlantic Ocean during the Cretaceous, were consolidated throughout the Tertiary and still are modified by erosional and sedimentary events.

The climate is described as tropical in coastal areas such as Rio de Janeiro City and Angra dos Reis. It is warm and humid all year round, with a mean temperature around 23°C and an average annual precipitation of 1,300 mm. The rain season occurs in the summer (Dec-Mar) when 45% of precipitation falls.

In mountainous areas such as Nova Friburgo and Teresópolis, the climate is characterised as temperate. Temperatures are milder at an annual mean of 18°C and the average annual rainfall is 1700 mm, with 59% falling in the summer months of December to March. Therefore, extreme rainfall events are not rare, and they are usually associated with floods and landslides.

The worst weather-related natural hazard-induced disaster in Brazil happened in January 2011, when it rained 166 mm in a 24 hour period in the Serra dos Órgãos region, which is a local denomination of Serra do Mar. Six cities were affected by floods, landslides and mudslides: Teresópolis, Petrópolis, Nova Friburgo, Bom Jardim, Sumidouro and São José do Vale do Rio Preto. These flows resulted in 903 deaths and over 2,900 people had their homes destroyed.

A year earlier the state of Rio had been the scene of another tragedy. It was New Year’s Eve and the city of Angra dos Reis was full of tourists. After intense rainfall, many mudslides were triggered and left at least 44 people dead. Such events repeat themselves every year.

Satellite imagery of the 2011 mudslides in Nova Friburgo - before and after. Via Google Earth, collected in 2019.

Satellite imagery of the 2011 mudslides in Nova Friburgo – before and after. Via Google Earth, collected in 2019.

Just like Rio, most Brazilian cities lack urban planning and settlements are segregated socio-economically. Usually an impoverished population is pushed to marginalised areas of cities, which are usually steep and mountainous areas where the risk of landslides is higher.

In this article geologist and former president of the Institute of Technological Research of São Paulo Álvaro Santos states that only few Brazilian geohazards are triggered exclusively by nature.

In fact, most of our geological and hydrological issues are, somehow, led by poor land-use management, both in cities and in the countryside. Santos also explains that tragedies related to rainfall are usually caused by a lack of land-use planning and housing, and inefficient government communication.

We must learn from our own history and examples from other places like Indian Chennai and Tamil Nadu to tackle the challenge elevated hazard risk in city margins. A good starting point is raising the awareness of the population living in high-risk areas by using geoscience education and science communication.

Geoprevention aims to raise the awareness of the local community about geotechnical and environmental risks such as floods, landslides, infiltration, river erosion and sedimentation and waste disposal

We have a good example from the city of Curitiba, where students from the Federal University of Paraná developed a project titled GeoPrevention. This project aims to raise the awareness of the local community about geotechnical and environmental risks such as floods, landslides, infiltration, river erosion and sedimentation and waste disposal. The students use didactic material like folders, manuals, booklets and provide mini-courses and lectures about these topics with a playful character that is easily understood.

This initiative is important because it provides an interdisciplinary dialogue between a university and civil society, in particular, the population affected by those geohazards, to recognise and avoid them at the individual level.

At a higher level, we need governments and policy-makers to take action on effective urban planning and risk management, and invest more in the prevention of rainfall-related geohazards than on their remediation.

In addition, the active participation of civil society and the private sector is crucial to building resilient societies. Technological innovations such as the internet of things and dashboards should also be used to improve disaster prediction and population warning.

The city of Rio de Janeiro has two big data operation centres, the Operation Centre and Integrated Centre of Command and Control, both launched before World Cup which granted Rio the title of “World Smart City” in 2013.

The centres improved disaster management by mapping areas with high risk of flood-related landslides and implementing a critical early warning and evacuation system for Rio’s favelas. However, according to this article, they have failed at “go[ing] beyond high-tech marketing rhetoric and help[ing] real people living in the city”.

Even though it is very complicated and takes time to solve the problem of rainfall-related hazard risk in city margins, it must start sometime: why not now?!