Without greenhouse gases the Earth would be a ball of ice.
CO2, a main greenhouse gase, is measured at several locations and is increasing.
The Oceans are warming, and the atmosphere is warming, it allows for more water vapour to be carried in the atmosphere.

https://www.theguardian.com/environment/climate-consensus-97-per-cent/2017/may/11/more-errors-identified-in-contrarian-climate-scientists-temperature-estimates

Warming topography has caused glaciers around Earth to regress, e.g. Glacier National Park, only 25 glaciers remain of 150 recorded in the mid 1800s.

http://video.nationalgeographic.com/video/news/151021-glacier-national-park-melting-vin

What is happening in the Arctic:

http://youtu.be/9NP0L1PG9ag

The volume of sea ice is decreasing, the ice thickness is decreasing, and sea ice extent is decreasing shown by trend lines displaying decades of data.

Meanwhile we still have journalists suggest completely wrong views on the cryosphere (snow and ice) e.g:

http://climatefeedback.org/evaluation/another-arctic-ice-panic-world-temperatures-plummet-the-telegraph-christopher-booker/

There is nothing agnostic about science, either data fits a hypothesis or it does not. Nor is it a case of having faith in science; objective data is what supports science.

Doog,

Try to see the wood through the leaves.
The problem is not sewage, the problem is nutrient from all sources including sewage and land and seabed use that amounts to overload - over supply - nutrient pollution.

I think similar nutrient overload occurred previously but a long time ago and in a big way, e.g as science indicates, when a meteor or asteroid hit our planet and threw up a massive amount of soil and nutrient into the atmosphere and ocean worldwide.

Loudmouth,

Don't forget longer droughts, longer periods of cloud, longer cold periods including longer more severe snow storms and cyclones.

Does anyone think out of season cyclones are linked to human impact on weather?

Successful agriculture is already like a virtual lottery and I think lack of brains to reduce nutrient flow into ocean ecosystems is realizing a less and less chance of a win overall for most people.

I am confounded by apparent lack of OLO poster ability to comprehend impact of virtual forests of algae plant matter underwater. There is still all the waffle associated with CO2 as the culprit.

It's too bad world ocean ecosystem water quality is all worsening unchecked.
Never mind consequences for our children and their children because the impacts and consequences are happening right now.
Once upon a time Australian CSIRO scientists knew that river (water) ecosystems could be degraded and reach a point of no return.

Whatever happened to free thinking?

Reflux seems to have retired to his rat-hole again.
This is a copy of my comment after which he disappeared last time, about a year ago:
:”Reflux made the baseless assertion that Robert Carter’s science, which nullified the science put forward by Reflux, consisted of “proven falsehoods”.
Reflux has been asked how and by whom these alleged falsehoods were “proven” .
Reflux has not replied, which is typical of his mode of handling a situation, where he has cornered himself with his dishonesty. Rodent-like, he will disappear into the crevices..
Posted by Leo Lane, Wednesday, 4 May 2016 6:02:47 PM”

http://forum.onlineopinion.com.au/thread.asp?article=18187&page=0
Perhaps after another year he will intrude his delusional presence on another climate thread. He should then have the civility to answer my question about his baseless assertion of “falsehoods” by Robert Carter, whose flawless science demolished the fraud promoters' attempt at science. There is no science to show a measurable human effect on climate.

In the very latest edition of Science is an article about the loss of glaciers world wide:

http://science.sciencemag.org/content/356/6338/580?utm_campaign=toc_sci-mag_2017-05-11&et_rid=33552183&et_cid=1321806

Summary:

"Global glacier volume is shrinking. This loss of Earth's land ice is of international concern. Rising seas, to which melting ice is a key contributor, are expected to displace millions of people within the lifetime of many of today's children. But the problems of glacier loss do not stop at sea level rise; glaciers are also crucial water sources, integral parts of Earth's air and water circulation systems, nutrient and shelter suppliers for flora and fauna, and unique landscapes for contemplation or exploration."

Munich Reinsurance stated that 175 billion dollars in damage was created by extreme events in 2016.
Billions of dollars are being lost in 2017 also, the film clips below cover the periods 21 - 30 April '17, 1 - 6 May '17 and 6 - 9 May 2017:

http://www.youtube.com/watch?v=SCTDlgSdzNY

http://www.youtube.com/watch?v=ZZHooRRpP-I&feature=share#t=696.339705737

http://www.youtube.com/watch?v=Ip2D1LpvUrc