We already know a lot of the effects that climate change has on our planet–like extreme weather, vanishing resources and rising water levels. But the earth’s water levels aren’t just rising, they’re getting warmer, too. And that has an impact on the wide variety of marine life that lives in our oceans.

A new study in the “Nature Climate Change” Journal shows that temperature hikes in the southern hemisphere ocean are starting to have a negative impact on marine species too, especially a type of fish called the “banded morwong” (pictured above). One of the study’s authors says ocean warming can have a serious effect on how a species grows, how the animals’ bodies function and even how they behave. Usually, warmer temperatures in the waters make a species multiply faster. But the ocean has warmed up too much at this point, and it’s taking a toll on the banded morwong population. Scientists were able to see increased stress on the fish, and that’s caused some of the morwong to die.

If you live near the ocean, tell us some climate change indicators you’ve seen around you…

Friends of the Earth is an international network of environmental organizations that considers environmental issues in their social, political and human rights contexts. The campaigns seek to address the economic and development aspects of sustainability. The campaigns are mostly about economic justice and resisting neoliberalism, forests and biodiversity, food sovereignty and climate justice and energy. Daniel Pentzlin is a campaigner at the European division of Friends of the Earth. He is working from Brussels to coordinate campaigns all over Europe. GLOBAL IDEAS talked to Daniel at the re:campaign in Berlin about the fascinating and the frustrating aspects of his work.

Environmentalists have tried a lot of different methods to convince the world that climate change is real…but the latest one might be the best–and most controversial. A group of Australian scientists put together a rap video for an Australian tv show and the message is clear: climate skeptics, wake up! Please be warned: the video contains swearing.

It’s getting a lot of attention on youtube and elsewhere online. But the bad language has prompted a lot of criticism, especially from the very climate skeptics the video targets. Is this an effective way to campaign for saving the climate? Let us know what you think!

The Solar Impulse project of Betrand Piccard and pilot André Borschberg is aiming to let a solar powered plane circle the world by 2014 at the latest. In his latest test flight – the first international one – Borschberg headed from Payerne airport in Switzerland to Brussels in Belgium.

GLOBAL IDEAS talked to André Borschberg while he was cruising 3,800 meters abover Switzerland. Listen to what he had to say:

Energy in Japan has become a very important issues since the nuclear crisis at Fukushima began. Japanese Prime Minister Naoto Kan said on Tuesday that the country will now shift its energy focus away from nuclear power and towards renewable sources. Currently, Japan’s energy plan sees the country getting 50% of its electricity from nuclear power and about 20% from renewable by the year 2030. But Kan said that’s what he wants to change, especially in light of Fukushima, and wind power will play a big role.

Japan will start supporting biomass and solar power, too. Plus, Japan is home to tons of hot springs, and they represent enormous untapped potential for geothermal energy. In fact, Japan could even produce enough geothermal power to export to other countries in Asia.

We know Japan has gone back to the drawing board since the Fukushima crisis, and Germany, too, is reexamining its commitment to nuclear power. Do you think we’ll see this trend in other parts of the world too? Or is nuclear power too entrenched into the energy system where you live?