Tagged: renewable energy

Climate explained: how much of the world’s energy comes from fossil fuels and could we replace it all with renewables? - Planetary Ecology

Robert McLachlan Sep 15, 2021

How are fossil fuels formed, why do they release carbon dioxide and how much of the world’s energy do they provide? And what are the renewable energy sources that could replace fossil fuels? Fossil fuels were formed over millions of years from the remains of plants and animals trapped in sediments and then transformed by heat and pressure. Most … Read More

Climate explained: is natural gas really cheaper than renewable electricity? - Climate: Explained

Guest Author May 19, 2021

    Climate Explained is a collaboration between The Conversation, Stuff and the New Zealand Science Media Centre to answer your questions about climate change. If you have a question you’d like an expert to answer, please send it to climate.change@stuff.co.nz The government wants us to phase out fossil fuels. Yet natural gas is much cheaper for … Read More

Turning and turning in the widening gyre - Planetary Ecology

Robert McLachlan Mar 24, 2021

I first wrote about New Zealand wind farms in May of 2019 (“A long time between drinks“). At that time, Mercury’s decision to build the Turitea wind farm seemed to me to be extremely significant, but also hard to interpret in terms of the larger scheme of things. Could it be that our low-emission transition was actually going to … Read More

As NZ gets serious about climate change, can electricity replace fossil fuels in time? - The Changing Climate

Guest Author Feb 17, 2021

Jen Purdie, University of Otago As fossil fuels are phased out over the coming decades, the Climate Change Commission (CCC) suggests electricity will take up much of the slack, powering our vehicle fleet and replacing coal and gas in industrial processes. But can the electricity system really provide for this increased load where and when it is needed? The … Read More

Protecting Fresh Waterways in Aotearoa/NZ: The Strong Public Health Case - Public Health Expert

Public Health Expert Oct 17, 2019

Nick Wilson, Leah Grout, Mereana Wilson, Anja Mizdrak, Phil Shoemack, Michael Baker Protecting waterways has the benefits of: (1) protecting water from hazardous microbes; (2) minimising cancer risk and other problems from nitrates in water; (3) avoiding algal blooms that are hazardous to health; (4) protecting mahinga kai uses (cultural importance and food security); (5) facilitating safe recreational water use; … Read More

Beyond the moon(shot) - Ariadne

Robert Hickson Jul 17, 2019

  There is a lot now being talked and written about the success of Apollo 11, and the Apollo space programme, half a century ago. The BBC podcast 13 minutes to the moon is fantastic. It tells well the story leading up to and during the 13 minutes that Neil Armstrong and Buzz Aldrin descended to … Read More

Solar is now the most popular form of new electricity generation worldwide - Guest Work

Guest Author Aug 03, 2017

By Andrew Blakers, Australian National University Solar has become the world’s favourite new type of electricity generation, according to global data showing that more solar photovoltaic (PV) capacity is being installed than any other generation technology. Worldwide, some 73 gigawatts of net new solar PV capacity was installed in 2016. Wind energy came in second place (55GW), … Read More

Alan Jones goes after wind farms again, citing dubious evidence - Guest Work

Guest Author Nov 09, 2016

By Simon Chapman, University of Sydney Last week, Sydney radio announcer Alan Jones lambasted those concerned about climate change and what he called “renewable energy rubbish”. Jones has been loose with the facts in the past, having been Factchecked in 2015 after confusing kilowatts with megawatts and quoting a cost for wind power he later confessed “where … Read More

30 ways to sabotage the introduction of solar power [SPOILER – we’ve tried them all!] - Guest Work

Peter Griffin Aug 15, 2016

by George Jones If for some reason someone wished to delay the introduction of solar panels into New Zealand, here are some ideas on how to do it. 1. Insist that the electrical industry eliminate any incentives that might inadvertently have been imposed in the past.  Make sure that the Electricity Authority stamps out these incentives where it can, … Read More

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