Bringing Climate Projections Down to Size for Water Managers

In the article below, by Kimberly M.S. Cartier, published in the EOS Earth and Space Science News magazine on July 26, 2019, one looks at a project with the potential of making global climate change projections more relevant for water resources managers in terms of watershed-scale predictions.

Source: Bringing Climate Projections Down to Size for Water Managers

Advancing Climate Science and Response for Caribbean Islands

With climate change expected to impact the Caribbean, in terms of extreme weather conditions,  researchers at the last Climate Modellers Meeting Consortium, in the areas of climate dynamics and modeling, meteorology, water, among others, hope to make strides in the field of climate science using data produced within the region.

One can click on the following link below to get details from an article published by Kimberly A. Stephenson, Tannecia S. Stephenson and Abel Centella-Artola on 25 January, 2019 in the Earth and Space Science News Magazine (EOS 100)

 

Source: Advancing Climate Science and Response for Caribbean Islands

Planting Trees to Save the Planet

In 2007, nine year old Felix, gave a presentation to his class about the climate crisis after he was inspired by Wangari Maathai, who planted 30 million trees in Africa in 30 years . At the end, he vowed to plant one million trees in every country worldwide.

Felix’s motivation and focus has inspired the Plant-for-the-Planet  international group where children and youth from all over the world serve as ambassadors for saving the planet from climate change effects. Together they hold meetings with business leaders and team up with notable persons for an eye-catching and powerful photo campaign.

You can read about the initiative and the amazing work being done by clicking on the following link Children speak out about the climate crisis

You can also see the link above for the Plant-for-the-Planet initiative to donate, support and even join the initiative.

Cape Town Water Woes

Water is life, and most people, while they may not wish to conserve water in the way that they should, they definitely know that they can’t live without water. Yet, in Cape Town South Africa, due to three years of below average rainfall and drought conditions, officials have stated that water levels are very low with the possibility of the water supply running dry in as much as ninety (90) days.

One can read the full details of the article published by Guy Birchall here.

However, I hope that such an occurrence serves as a warning to other persons that we all need to play our part in conserving water, especially when climate change creates unfavorable conditions that one is not accustomed too.

Image showing Low Reservoir Levels
Cape Town may become first city to run out off water

With news of the Cape Town water crisis spreading reports have confirmed that a woman named Talita van Der Heever has been able to come to Cape Town residents’ aid through the social media tool Whatsapp which one can read about by following this link: Social media steps in to aid Cape Town water crisis.

Talita van Der Heever
Talita Van Der Heever (L) uses Whatsapp to help Cape Town due to impeding water crisis in April (sourced via MSN.com: Social media steps in to ease Cape Town water crisis)

 

 

Stream Network Geometry Correlates with Climate (EOS)

This article by Terri Cook, was published April 6th, 2017 on Earth and Space Science News (EOS).

A “big data” analysis of nearly 1 million river junctions in the contiguous United States shows that branching angles in dendritic drainages vary systematically between humid and arid regions.

SOURCE: Geophysical Research Letters

grand-canyon-dendritic-drainage-800x600
Enter a captionAn analysis of dendritic river drainages in the contiguous United States indicates that the junctions between tributaries are wider in humid regions and narrower in arid regions, such as at the Grand Canyon, pictured here in a three-dimensional Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) image taken by NASA’s Terra spacecraft in 2011. Credit: NASA/GSFC/METI/ERSDAC/JAROS, and U.S./Japan ASTER Science Team

Although dendritic river networks, whose branches join in treelike fashion to form increasingly larger streams, are found all over the world, the processes that shape them are still poorly understood. To explore whether climate influences the geometry of dendritic stream networks, Seybold et al. analyzed nearly 1 million digitally mapped river junctions in different climatic regimes across the contiguous United States.

Persons interested in reading this article can find it here.

Global Significance of the Changing Freshwater Carbon Cycle – EOS

By Bopaiah A. Biddanda

Freshwater ecosystems constitute a small fraction of our planet but play a disproportionately large and critical role in the global carbon cycle.

As human activities continue to pump carbon into the atmosphere, the backbone of our understanding of the resulting warming is our knowledge of where that carbon is going: into the atmosphere, into the land, and into bodies of water. When it comes to accounting for the carbon absorbed and emitted by water, the role of inland freshwater may appear quite small compared to the vastness of Earth’s oceans. After all, inland lakes, rivers, streams, reservoirs, wetlands, and estuaries cover less than 4% of Earth’s surface [Downing, 2010; Verpoorter et al., 2014].But recent research shows that the roughly 200 million bodies of inland water play a much larger role in the global carbon cycle than their small footprint suggests. Inland streams and rivers move vast amounts of carbon from the land to the ocean, acting as carbon’s busy transit system.

They also play a disproportionately large role in the global carbon cycle through their high rates of carbon respiration and sequestration [Cole et al., 2007; Tranvik et al., 2009].According to recent estimates, the amount of carbon that inland waters emit is comparable to the net amount of carbon absorbed by living organisms on Earth’s land surface and in its oceans. Moreover, bodies of freshwater bury more carbon in sediments each year than the vast ocean floor [Battin et al., 2009; Aufdenkampe et al., 2011].

Nevertheless, there is great uncertainty in these figures, and scant data exist on continental and global scales. The changing climate is putting freshwater ecosystems at great risk: They are warming at an alarming rate, outpacing warming of the atmosphere and oceans. It’s crucial that scientists dedicate more resources to understanding the global impact of the freshwater continuum on the carbon cycle.

If you would like to read the rest of the article please click here.

Climate Change Exchange – Presentations and COP 21 Card

caribbeanclimate

The Caribbean Community Climate Change Centre held the second in a series of Climate Change Exchange events last Thursday in Belize City. The first was held in Barbados last October. The event, which was held with support from the European Union – Global Climate Change Alliance (EU -GCCA)Programme and the United Kingdom’s Department for International Development (DFID) under the DFID ARIES project, sought to raise awareness and promote dialogue about COP 21 slated to be held in Paris later this year, the United National (UN) Intergovernmental Panel on Climate Change (IPCC) Fifth Assessment Report (AR5), and the range of work done by the Centre across the Caribbean over the last decade.

The widely supported event attracted over 150 guests drawn from the apex of government, the diplomatic corps, the scientific community, civil society, development partners, universities, local and regional media and the general public. It was also live-streamed and broadcast live on four television stations (Krem…

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