Working of the capacity down pipe (1, empty; 2, filling-up; 3, over-flowing; 4; full; 5, drained)
A case study in Manchester with different solutions for water infiltration and retention systems, showed that soak-aways and infiltration trenches are generally less preferred than capacity down pipes, ponds and filter strips.
And this wateringpipe – the capacity downpipe (CDP) – works even better.
Flood risk maps like this one from NOAA, are not glamorous or technologically exciting things. They have done their work for many years and, provided that they are up to date, are an effective way of communicating a generalized level of risk.
SF doesn’t know which neighborhoods will be worst hit after a given storm, but they do know sea levels are rising, and that with climate change, those hurricanes off Mexico’s Pacific Coast could come north some day. They don’t know when or how severe, but we could get a 25 foot storm surge at some point.
In San Francisco (SF), where the waterfront has been a political battleground for decades, sea-level rise is too easy to ignore.
While SF is less vulnerable to rising sea levels than other parts of the Bay Area, portions of areas bordering the bay would be at risk.
The challenge is to accommodate the bay’s impending expansion as it rises because of our warming planet. And to accomplish that in a way that won’t put our human and environmental resources at risk. Read More
COP21: Rallies call for Paris climate change action
Will the negotiations in Paris lead to an international climate agreement? The question seems not to be whether the negotiations lead to an agreement but what bottom line, the results of the agreement will be.
Five questions about the climate issues. Read More
Berkeley Earth has just released analysis of land-surface temperature records going back 250 years, about 100 years further than previous studies. The analysis shows that the rise in average world land temperature globe is approximately 1.5 degrees C in the past 250 years, and about 0.9 degrees in the past 50 years.
With 195 participating countries and 3000 journalists we can expect a lot of news from Paris during the next days.
In advance, a summary of the top in figures. Read More
Businesses have a major role to play in driving low-carbon growth
Fear is a bad counselor, when it’s about terrorists and refugees. But it’s a welcome guest at the big climate summit that begins today in Paris. Global warming needs to be stopped, we are running running out of time.
In Japan, floods have caused devastations. Torrential rains are associated with former Tropical Storm Etau shifted north after dumping unprecedented rainfall on parts of eastern Japan, last Wednesday and Thursday.
More than a hundred thousand people had to flee because of the high water, which sometimes even carried houses along. Read More
Floodtags offers the local perspective, the ground-truth on floods, by listening to and anticipating on the flood observations of citizens on social media. After filtering and enriching the data with water- and geolocations, Floodtags delivers the ground-truth data as a service for flood management.
The crowd is saving lives during flood disasters. How? FloodTags is receiving all flood related tweets, starting in Indonesia.
Tweets about major floods are being turned into a mapping tool that could be used by emergency services and disaster response teams to evacuate an area, save lives and provide aid. Read More
Companies and public organisations like hospitals, still don’t focus on corporate water risks as largely external to the company.
However, with demand set to increase even further by 55% in 2050 (OECD Outlook 2050) and deteriorating water quality (OECD, Anthony Cox), companies are facing the need to expand their perspectives. Read More
Excellent works with community self-help groups in semi-arid Africa to improve their environment sustainably. Effective soil and water conservation enable improved water supply, food security, health and incomes. Find out more about Sand Dams here: