
Climate: There is also good news?
It seems almost hopeless. Every day new bad news about the looming climate catastrophe rains down on us.
The news about climate and climate change accompany us every day. While parts of Australia are drowning in the rain, the earth is drying out in European areas. The eternal ice in the Alps melts like an ice cube in summer, and there is a severe water shortage in northern Italy. Now the energy crisis is bringing us to our knees and there is no way out of using fossil energy. But it's not all evening yet, and there is also good news.
China is showing the way
“Well, as long as China keeps going like this, we don’t even need to start.”
This sentence comes up in almost every private climate debate. But that should now be an end, because according to the Bloomberg NEF agency, which specializes in renewable energy, the output of so-called offshore wind turbines (deep-sea wind farms) is expected to increase tenfold worldwide by 2035, with China accounting for the largest share of this development. In the future, China will generate a large proportion of its energy from offshore and onshore wind farms and floating wind turbines.
But that's not enough. Energy generation from the sun is also expanding at an incredible rate in China; the seven largest manufacturers of photovoltaic cells are based there.
China wants to increase renewable energy capacity to 570 gigawatts this year. That's equivalent to half of the US's total energy capacity and, according to forecasts, could reduce CO₂ emissions much sooner than planned.
Gas prices that are too high – a blessing and a curse
The ever-increasing gas prices since the Ukraine war are slowing down the transition from coal or oil to gas on the one hand and accelerating the transition from fossil to renewable energy on the other. According to experts, demand for gas is expected to remain low until 2025 and so Australia could be at risk of demand destruction for gas, which in turn paves the way for the production of renewable energy. Sun-drenched countries such as Australia, Chile, Egypt and Namibia could soon be among the new superpowers in solar energy production.
Coasts and mountains, such as the west coast of Africa or the east coast of Latin America, offer the optimal conditions for generating wind power. With the support of German companies, these and other countries could soon be among the largest exporters of renewable energy.
Save in time...
Where does the energy come from when there isn't enough wind or the sun doesn't shine all day? This is a legitimate question, but there is no cause for alarm. New storage technologies will make it possible to feed in excess energy in such a way that there is still enough green electricity available under less than optimal conditions.
The alternative to lithium-ion batteries, which are also installed in many electrical devices and electric cars, are longer-lasting and non-flammable redox flow batteries, which have a higher storage capacity and enable an independent increase in capacity and performance.
Novel iron-salt batteries, which are currently in the development process, represent an even better alternative. In contrast to lithium-ion batteries, these batteries do not need to be cooled, are non-toxic and can be produced more cheaply and in a more environmentally friendly way. In addition, the required materials can be found almost everywhere, which excludes any dependency on specific supplier countries. These batteries would be able to store the excess electricity much more efficiently, meaning that there would be enough electricity without as many energy parks.
There are already many solutions to minimize CO₂ production and not just let the impending climate catastrophe happen. The urgency with which action should be taken only needs to be brought to the fore!
Source: spiegel.de , 1e9
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