Unfortunately Google is not supporting Linux yet. Although they've been promising for a long time. There are alternative available, but not as good. As much as I hate saying this, but the only way at this point in time is either Windows or Mac.
Google Earth has received so much press coverage that many users will
appreciate that it is one of the coolest applications to download. In
brief, it is a feature-laden 3D virtual globe, map and geography
browser which lets users zoom in on their world with fantastic detail.
View satellite imagery, maps, terrain, 3D buildings and even explore
galaxies in the sky. This application allows the exploration of rich
geographical content, save toured places and share with others. The
software maps the earth by the superimposition of images obtained from
satellite imagery, aerial photography and GIS 3D globe.
Google Earth is undoubtedly a very impressive application, and it is
extremely hard not to admire the wealth of features that it offers.
Its satellite images are unrivaled, it provides useful and accurate
statistical information, and the software has many practical benefits,
such as helping to find locations and give driving directions. In
terms of functionality, this application earns our highest praise. We
use the software on a regular basis on both desktop and mobile devices
(the latter under Android). However, whilst Google Earth is available
to download without charge, Google do not release the software under
an open source license. There are a number of applications which are
credible open source alternatives to Google Earth. Whilst none of the
software applications featured in this article have all of the
features offered by Google Earth (although some offer some different
features), and they are not exactly comparable, they are all worthy of
World Wind Virtual globe initially developed by NASA's Learning
Marble Combination atlas/virtual globe
Virtual Ocean Integrates the GeoMapApp tool suite with the NASA
World Wind 3-D earth browser
ossimPlanet Accurate 3D global geo-spatial viewer
GeoMapApp Earth science exploration, global topography database,
OpenStreetMap A copyright free alternative to Google Maps
I hope that Google will support Linux for the plugin too. I think the
best way to show that there is a need for Linux support is to vote for
the feature request #117 on the feature tracker.